I think eventually market forces will take over in this situation, just like they did with tv, radio, newspapers. Twitter especially, but other big platforms have now taken sides and have lost all trust with the "right". It's only a matter of time before they get "unbundled" from a political angle, Parler is a perfect example.
You can't have moderation free platforms because there are a lot of profane an wierd people. Platforms will need to pick which side they are on, and cater to those users. Just like TV channels, newspapers etc have all picked between left and right.