The answer to all this censorship is simple: break up Facebook. If we absolutely, positively can't, then make them a common carrier, regulate them like a utility, and strip out all the profit incentive to keep bad actors on the system. The funny thing is that Facebook's crimes are not merely censoring what they believe to be disinformation, but also amplifying people who break their own rules. Facebook and Twitter had world leaders policies intended to justify keeping politicians who break their rules on platform, specifically so they could amplify them, because it made the company money.
In other words, everyone angry that Twitter banned Trump in 2021 should also be angry that Twitter didn't ban him in 2017.