Just looking at a site like Reddit, where over the summer most major subreddits were flooded with ACAB posts and the comments said some pretty extreme stuff without issue. But then a new account on T_D, a blue-lives-matters sub, said something anti-police and that was justification for shutting it down.
Don't let your dislike of certain communities cloud your views. Punishing the lawful majority for the actions of a few, often outsiders, and letting those few define what a community supports is not something our society needs more of.
That said, choosing who you do and don't interact with is your own business. Perhaps "I know I know more than them because they use homophobic slurs" isn't the strongest reason though, as one does not always map to the other