A couple interesting things that Rowling has done has been to teach a generation of children that there is evil (not just bad choices) in the world and that newspapers and politicians cannot be trusted to tell the truth, that they may have a personal agenda that distorts their perception.
And that some teachers cannot be trusted either and may be aligned with evil.
Noooooooooooooooo!!! Don't kill Harry!!!
Is it possible that all the wizardry and magic is in the fantasy mind of a little boy who is abused and forced to live in a pantry under the stairs? That would be a true lesson of good and evil.
Maybe we can look forward to a Dallas type ending.
Amen!!!