Hopefully all the assholes are attracted to one shitty instance and then that instance gets defederated.
Srsly tho, the assholes are kind of apart of the whole experience, but I think the people being drawn over here right now are not really the asshole type, at least so far.
Typically assholes like to be in an echochamber and won't stay in a community where they get downvoted and reported. Just downvote asshole posts and they'll naturally leave to an instance that allows assholes.