Gotta say, pre-emptive defederation seems like a bit of an over reaction. There’s plenty of leftists in other instances, not just hexbear and lemmygrad. Hell, I’m an anarchist that regularly comments on political/social threads in this instance, it doesn’t seem to be an issue. Lemmy in general is pretty obviously far left leaning. I don’t see the harm in federating with hexbear, unless they show themselves to be actively harassing or trolling. But you’d have to federate first to find out if they will