I thought Blockchain was how the protocol knew how to federate, e.g. where to find other users. (?) I don’t really remember how Blockchain works but iirc it is a way to verify trust, e.g. this person really is /u/sem because our shared document says they are.

I know DNS is an alternative but it kind of sucks. Bluesky is inventing it’s open DiD thing for identity and it is centralized in practice but might be a good system. And I have no idea how it works.

What would be the possible alternatives to block chain?

Are you seeing Lemmy being intolerant of all right wing discussion, or just Maga bullshit like sol is railing against