I’m sorry but not one part of your comment shows any problem with lemmy. We’re using federated social media specifically so any instance/community can exist is a vacuum, and that includes those you do not agree with.

There are plenty of comms not having anything to do with politics that thrive, politically loaded content does slip into my feed and discussion is rarely uncivilised - on par with early reddit days.

lemmy failed as a platform

This is exactly my problem, you think lemmy is one platform. It is not. It’s interconnected but seperate bubbles of activity that are brought together by federation, which has always been optional.