Let me try this another way. What if Harry Potter was a fantasy story about the misadventures of a child Nazi? Or a child abortionist? Or a child communist?
If the actions and moral choices of the characters remained the same, it would make no difference. As a matter of fact, the Potter stories ARE pretty much about WWII. Of course, Harry Potter has more in common with Anne Frank than with her Nazi tormentors.
Of course you wouldn't know this because you prefer to wallow publicly in the filth of your own ignorance.
It would seem that "category error" is your favorite form of logical fallacy, at least for the moment.
There is a difference between a chosen behavior (all of your examples) and an innate trait (magical aptitude, in the HP universe).
Poisoning the well with innacurate comparisons. These wizards aren't the wizards the Bible warns against. By your absurd absolutism then even Gandalf from LOTR is evil, he is a wizard after all. You need to learn about grey, that's what the world is really made of and as long as your world is black and white your conclusions will be false and you will be unable to deal with the real world as an adult. Your blind insistance that HP is evil is a childish narrow minded obsession that does harm to you, your children, and the faith you think to defend.