I'm completely neutral on the subject of anime, but I'm curious... how much of this dislike of anime is caused by it going mainstream? (Or simple overload) It seems that it's a fad in itself to hate mainstream, thereby the hate itself of anime is starting to become the mainstream, but if it's mainstream to hate the mainstream... how can what you hate be mainstream? Wouldn't you be hating something that is non-existent? It boggles the mind!
Hating anime isn't really a niche community. You just have to be in the right network. (I'll give referrals if you want)