As far as I know, hexbear.net is a similar Lemmy instance same as midwest.social (yours) or lemmy.sdf.org (mine). Hexbear has a general focus of communism -- though that feels very reductive and I don't mean leave it at that, I just don't have the skill or care to do any better.

Due to various groups (instances) politics, they are often disconnected-from (defederated).

I don't know if I did a good or bad job explaining this cuz I'm a little drunk, but I hope it's been at least a little bit helpful