/This morning I was flipping through the news channel and I happened to land on E! Entertainment (not that that is a wholesome station in the SLIGHTEST),/
Sure. Why the insistant caps-lock, then?
/but I just happened to come across the latest story of the writer who wrote Harry Potter made one of her characters (the wise wizard I guess??) gay ./
Yeah, so?
/The story is as a boy he fell in love with his fellow wizard friend and got rejected which made him evil (I guess? I don't follow HP)./
It's clear that you don't. Dumbledore didn't get rejected, per se. In fact, we don't know if Grindelwald ever found out about his feelings or if he ever returned them. After Grindelwald left, Dumbledore became the opposite of evil. He tried to shield himself away from the catastrophe that Grindelwald was making by investing his time in Hogwarts, eventually confronted Grindelwald and defeated him, and then tried to use his powers for good (while also trying to repent for the damage that he had been partially responsible for). One could say that Grindelwald's "rejection" had the opposite effect.
/The point to this is: KIDS LOOOOVE HARRY POTTER!/
Uh...yeah. Not every kid, but yeah, it's popular.
/So OF COURSE they are going to introduce that in the series! Not that HP is in ANY way wholesome with all of the witchcraft and sorcery ...but still!/
Oh, good Lord. Not the "satanic, occult witchcraft" nonsense again.
/I feel so bad for the coming generations!/
Why, because they might actually learn and realize that being gay is nothing to be ashamed of? It was never even explicitly mentioned in the books that Dumbledore was gay! None of the characters figured it out, or appeared to. Not even Harry.
/I am seriously wondering if I should even have kids now./
Don't. Just, please, don't.