Ttom, you wrote a whole novel but didn't seem to get to the point lol. Twitter and Facebook aren't public entities, they have no obligation to host content that they don't want to and can moderate accordingly. They aren't stopping you from saying or hearing an idea, they're just not letting their platform be the messenger.
I'm all for parler and 8kun and all the fringe sites spinning up, because you have a right to speech and assembly. Some assembly may be required, though.
Same thing for the birth of shaggy and later on, surly. They didn't like the old mods, so rather than bitch and moan about MUH FIRST AMENDMENT, they made their own board. With blackjack and hookers.
Moderation is not censorship. Moderation is "you can't say that here", censorship is "you can't say that ANYWHERE'