So maybe they are really bigoted, against non-Wizards.
That would actually make sense, since Wizards are in many ways a distinct subspecies of humanity. They breed true, mostly, and powerful ones tend to have powerful children.
That could lead to some nasty blood purity stuff.
This is exactly the sort of conclusion I've come to when trying to read up in
Our World and
Your Story about what makes a wizard a Wizard. I've also asked my partners in crime on ragnarok.gamingsandbox.com who are much more familiar with the novels than I.
And that's pretty much it. You're only a wizard if the White Council
says you're a wizard. Even if you can do everything a wizard can do (or more). If you're not acknowledged as a wizard by the White Council, they tend to see you as a dangerous element that needs to be watched or controlled. They call you a sorcerer, applying negative connotations to that word when they use it. It's almost as derogatory as calling a practitioner a warlock.
Yeah, so, if you have the training, education, and bloodline AND the White Council acknowledges this after you pass their tests -- you're a Wizard. If you have the training, education, and bloodline and the White Council does NOT acknowledge this and you haven't taken or have failed their tests (some people do that on purpose) --
you're not a Wizard!