It's the radical moderators and developers of Lemmy that censor and delete posts and comments that fit their narrative.
The entire point of Lemmy and other decentralized and federated systems is that no one entity is in control of it. It's not like a site like Reddit where the whole thing is controlled by one company.
They can only delete posts and comments from servers they're moderators of. That's probably just a few servers out of the thousands that exist. Nobody's forcing any user to use those servers. If you don't like the moderation on one server just move to a different one.
I'm hoping there will be a fork or new federation project that doesn't have baggage.
Why fork it if the software works well as-is?
You can run your own Lemmy server and defederate from every other server if you want to, or only federated with a few hand-picked servers.