I hear that #misskey has a racist trolls problem and is filtering new Western users out to attempt to mitigate that (after several awkward attempts at intervening).
That's probably one of the appeals of the fediverse. Someone can hunker down and new users can just route somewhere else.
That said, it shouldn't come to this either, people should be treating others with respect, not behaving in a disgustingly bigoted fashion. People should respect others on a platform.