I can’t speak for the admins but I feel like people are trying to turn this into an ideological thing when it’s really more about the fact hexbear is openly positioning itself as a sort of army with the purpose of going out and spreading onto other instances. Like, regardless of ideology, not wanting instances that are almost explicitly encouraging the brigading of other instances to be able to target yours isn’t the worst decision.
Now personally I feel preemptive defederation is wrong, full stop, but I’m not gonna sit here and pretend I can’t see it happening with that particular instance eventually. But that’s another issue.
I don’t think you need to do anything different than you were already doing.