My original point is that Murphy's antagonism to Dresden in Fool Moon isn't properly set up, and we have to read between the lines in the rest of the series to back fill it. Even then, there is great debate on whether or not her actions are explainable.

Perhaps, however it works very well in pointing out her major character flaw, which comes back to bite her big time in the latest book.  If one of Harry's major flaw is his propensity to be over protective, which often backfires because he holds back information when he should be up front.. Murphy's major flaw is when she thinks she is right she shuts her mind and jumps to conclusions.

Missing the point. It doesn't matter that Harry didn't know what she was going to do. Harry told her a pretty bare bones assessment "they are vampires, they eat people," which she didn't take seriously. He could have told her more that would have made her more wary about the situation

No, I am not,   he didn't just tell her they eat people, he emphasized that he felt it was too dangerous even for himself.  Susan prided herself on being a good reporter,they gather information, but she never pushed him with one question about them, not one...  All she could think about was "what a great scoop" it would be and that Harry was being over protective... Once that got on her brain she was deaf to any further warnings he tried to give her...  She had gotten though the other things safely, discounting luck and the fact that Harry was there to save the day... So how dangerous could a nest of vampires be? She didn't need his protection she decided.  It still comes back to who stole, forged the invitation, and crashed the party?  Who?  In my book that makes Susan solely responsible for her actions and what happened to her..  She had wanted to make her name so badly with an exclusive, it didn't matter how much information Harry gave her.  In fact the more he told her the more excited and deaf she became to any warnings against it.

She "handled" it by waiting in the van and then doing nothing but hold the camera while Harry killed it.

She didn't exactly wait in the van, she took a video of it remember?   Of Harry killing it if I remember correctly..  She said she had handled it, in her mind she had, it doesn't matter in her mind that she had gotten it all out of perspective, and the fact that if Harry hadn't been able to kill it she could very well have been toast..

    I just don't see how Harry better informing the Alphas of the wider world of supernatural creatures or politics would have helped in this situation.

Nothing was ever going to make this any better, that should be obvious from the attack at Raith Manor. However the question is answered directly in the text.
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    He nodded. “So. If I’d had this conversation with you sooner, maybe they wouldn’t be. Maybe if we’d had a better idea about what’s actually going on in the world, it would have changed how we approached things. They follow my lead, Harry. I have a responsibility to make sure that I do everything in my power to make them aware and safe.”

And Jim throws a little irony around later when he throws out this little snippet.
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You are still ignoring the fact that when the pack first came up against the skinwalker, when Kirby got killed.   Harry had no clue what they were up against except it was bad and dangerous.. The attack on the Raiths came later in the book..  Will made his point because Harry was vague about the island, Kirby's death earned them the right to have all the information when they go up against something, and Harry agreed... But again, in the attack where Kirby got killed, Harry had given  them the only information he had in the moment or was able to give because he was totally freaked out by it.   The pack still decided to back him, their choice... Harry wasn't responsible that that, from then on if the pack decided to follow him, and he knew now what it was, then it is his duty to tell them all he knows about what they are getting into and not to shield them..


clue what it was, just that it w

My things with Kirby are that
1. when the Alphas actually engaged the Skinwalker immediately after Kirby got his throat ripped out and Andi was beaten, they successfully drove it off. They didn't beat it, or hurt it, but they put it at a temporary disadvantage long enough for it to not see enough profit in continuing the engagement. So I don't think the Alphas were defenseless. Kirby just picked up the Idiot Ball. It was like he was the character in a ghost story going to investigate the strange noise in the attic by climbing up the stairs backwards with a flashlight that keeps turning off.
2. Kirby was standing watch on the other side of the parking lot, dozens of yards away from any help. He was standing under a streetlight, as a human rather than a wolf, holding a brightly lit cellphone in his hand. He wasn't ready for a surprise attack, even though the guy was supposed to be standing watch. Dresden recognizes the danger Kirby's in, and runs out to call him back when the Skinwalker gets him.
3. If Harry Flippin' Dresden, Big Bad Brother Harry, as Butters calls him—the guy who the Alphas saw take down an entire group of Fae cavalry with one spell, a guy they've personally witnessed take on a pack of Hexenwulves AND a loup-garou, a guy with a reputation for being tough, competent, and extremely powerful (relative to them)—if THAT guy came to me, desperately calculating prime numbers to maintain his grip on his sanity, white as a sheet, telling me that he needed a dark, quiet place for an hour and a half before he was stable enough to function, and that whatever was after him was "really bad," my first response wouldn't be "Let's post two guards several dozen yards away from any kind of protection." It would be "Everyone come into my apartment; we're going to keep watch through the windows and guard ourselves behind a threshold, because something terrifying and powerful enough to send the most badass person we've ever met into gibbering madness is coming, and it's pretty obvious we should do whatever we can to protect ourselves without engaging it."

I mean, shouldn't Billy or Georgia have been smart enough to think, "Hey, maybe this thing could reduce us to insanity too?" And shouldn't Kirby have thought, "Hey, I not only have better senses as a wolf, but I'm faster, stronger, and harder to kill, so I should probably stay as a wolf while I know something dangerous is around?"

Yes, Harry led the skinwalker to the area. But a couple of things about that. 1. Harry didn't have much of a choice. There was, quite literally, nowhere else to go. He couldn't have made it back to his apartment where a threshold would have protected him in the state he was in. He couldn't hide in a crowd of people, because there would be too much noise or light for him to do what he had to. Billy's place was the only one that would be both safe and quiet enough for him to recover. And 2. They don't take Harry's warning seriously enough. Applying even an ounce of genre savviness would have been enough for the Alphas to have escaped without permanent injury.

Maybe you can argue that Harry should have given Billy the rundown on the greater supernatural world, but I don't think it would've done them any good. They already knew there were things like the Loup Garou out there that they couldn't handle. They knew that there were WolfWeres like Tera West that were old and powerful enough to train humans to turn into wolves, so they had to know that the supernatural was bigger, weirder, and more dangerous than they thought. And when you have the guy who sets the bar for humanity's stand against the Spooky Things in the Night come to you and tell you that something really bad is coming, you take all the steps you can to make sure that you and yours stay alive.

Exactly to all of that... That is basically what Will told Harry as well, they knew the risks, they are adults they made their choice it wasn't his fault...  Later on page 220 is a bit different, Will mentions Kirby, but not because he is blaming Harry for his death, but because of his willing sacrifice and the fact that they are not kids any more,  Harry doesn't need to and shouldn't shield them or think he has to shield them from the ugliness out there..  They want to help and fight along side of him, so Harry shouldn't hide anything from them.  And Harry agreed..

In the case of Susan and Kim Harry either makes too much or too little information available.  In Susan's case she is a victim of the Dunning-Kruger effect, she over estimates her competence, Harry would have done better to involve her more and make her aware of the hazards and the mechanics of how the supernatural world works, like the privileges of guests for example.  In Kim's case if he wasn't going to help he should have never drawn the circle on the piece of paper, the same piece that triggers Murphy's attack.

He did...  She was there when he took down the Loop, made hay with her newspaper over the scoop..  If that didn't tell her how dangerous things can get, what would..  But she wanted the scoop and the fame that gave her, plus part of her never bought into how fricking dangerous these beings can be... Her reaction when Harry tried to tell her was he was being over protective of her... Truth of the matter is she never listened to a word he said on the matter.

As far as Kim goes, she swore to him it was merely an academic exercise, and continues to swear that it is.  Why wouldn't he teach her the basics?  In physics class the instructor may draw out the basic plan as to how an A-Bomb works, even how to build one..  However I doubt the same instructor would do it if he or she knew you had enough weapons grade uranium back in your locker to make a bomb.. 

So even one have contact with a supernatural like Bianca, it is not that easy to actually enter the game. This is especially true during the early part of the series. The supernatural world is still peaceful at the time, and even the war with the red court is unlikely to start so early if not for Harry triggering it. Under such a peaceful times, the supernaturals tends to hide more. Later part of the series, especially after the red court is wiped and the appearance of the fomor resulted in the loosening  of the veil of secrecy, but that is far from book 3. If Susan could survive until book 12 on her own, she'll would become a different person.

Victor Sells, self taught sorcerer making Three Eye to sell to addicts and stupid kids.. Did Harry trigger that?   Or the remote ripping out of hearts...Did Harry trigger that?  Or how secret was either one of those acts?  Or Bianca sucking the life out of her vanilla secretary because Harry brought her the news about what happened to her friend... Or the F.B.I. wearing the Hexenbelts ripping apart some people that didn't deserve it... Or the kids that Bianca groomed to either be turned or food at the party that night?  Some may have burned up because Harry let loose, but the reason they were at that party wasn't because the Red Court was just minding it's own business peacefully.. 

Susan may have become a different person by book 12, for one thing she had already paid a very heavy price for her own stupidity, that tends to change a person..

And as for Murphy and her character flaws, I think she has improved a good deal over the series too. She's had some major setbacks, so some backsliding here and there is to be expected. (The nightmare attack, breaking the law in Blood Rights, being demoted in Proven Guilty, losing her job in Skin Game, discovering Dresden is almost certainly dead followed by the Fomor conflict, and the circumstances of Dresden's return).

Her one character flaw remains,  when she thinks she is right, her mind closes up like a clam..  Harry completely trusts her judgement so he doesn't see it, love may have something to do with it.

In the case of Kirby, the narrative doesn't challenge Billy's response to Kirby's death (contrasted to how the narrative challenged Butter in Skin Game). Billy is the one challenging Harry and is framed in justified in expecting Harry to share more information. Harry might not be the cause but there's culpability, otherwise Harry would have no reason to change how he does things.

Not true...  What Will was saying was with Kirby's death they have proven that they are willing to pay the ultimate price, they are not kids that need to be protected..  That isn't assigning culpability for Kirby's death,  it is demanding respect as team members..  Harry realizes that, he knows he needs them in the coming fight, he realizes they are adults now, capable of making choices.  All he can do now is give them what information he can so they can make the choices right for them.

To me, the issue is not that Harry is in any way culpable in Kirby's death, but that, by refusing to share information, Harry allowed the possibility that other Alphas would get killed due to the lack of information. It's a hypothetical concern that was only really brought home to Will and Harry when Kirby died. For example, if the Alpha's had gotten into a fight with a Denarian and one of them had died, there's a good chance Harry would have had some culpability, because he had a bunch of information about Denarians that might have helped, but up until this point he hasn't shared it. This isn't true with the Skinwalker, of course, but it makes the possibilities clear.

In the fight that killed Kirby,  Harry did not know until after the fact what they were up against.. He gave them the information he had, it was bad and dangerous, that is all he knew..  What Will was saying on page 220 almost two hundred pages later is the fact that Kirby was willing to and did die to help Harry earned them the right to know fully what the stakes were before going in, they weren't kids anymore to be shielded...

Wolfeyes raises a good point arguing that Jim wants us to believe it is Harry's fault, not just in this case, but in all of them, that harm has come because he didn't share information. I don't believe he is ever told it's not his fault. He does repeatedly bring up the point that people have been hurt by him not informing them. He is often called out for blaming himself in general.

Will clearly tells him it isn't his fault...