Red-hatters enter non-red-hat spaces for the purposes of intimidation, feeling superior, and sowing discord. Then they pat each other on the back for “owning the libs” and continue the cycle.
It’s perfectly reasonable to not want to federate with relentless trolling and become a Nazi bar by means of association.
Declaring what they'll do before they've done it is pretty silly. Sure, if that instance starts becoming a problem, defederate. But maybe we can hope for the best first?