federation certainly allows the bubble to close - {dot}world is an example; zero hate, people can absolutely choose to ensmollen their PoV if that makes their world safer. the nice thing is, interesting, thriving alter-views are only a federated instance away :-)

I tend towards the democratic socialist point of view as a default, but damn-me if hexbear isn't both entertaining and informative, even if I disagree with some of their more... spicy(?) positions (sometimes vehemently).

lemmy{dot}ml is one of the most widely federated instances around, primarily because its a pretty diverse mix of lefty and lefty-ish ideas. lemmygrad{dot} hexbear{dot}net and blahaj{dot}zone and others equality as infuriating/interesting are all accessible from lemmy{dot}ml. its a pretty ideal instance, for me at least.

one thing I do try to make a point of doing is preferentially interacting on non {dot}world posts and comments. many peeps will post across community instances to encourage engagent diversity. keeping things active on non-{dot}world communities helps everyone.