All of this because authoritarians lose their minds at even the suggestion that they might actually be deeply unpopular.
I'm not trying to be frivolous, I genuinely believe that's what this all boils down to. Nothing pisses authoritarians off more than that XKCD comic that suggests being banned from online spaces is a response to unpopularity. They are attacking 230, and taking a lot of other actions besides, in order to make it illegal to suggest online that someone is unpopular.
Who's 'they?' Wellllllllllll, we can't avoid saying it: it's Republicans. People like Devin Nunes and all his silly lawsuits against people who criticize him. People like Elon Musk, who bought and then promptly broke Twitter in order to prove to us how popular he is. People who put a lot of time and money and energy into opposing Gigi Sohn's nomination.
But the fact is that authoritarian beliefs ARE EXTRAORDINARILY UNPOPULAR. They will always be unpopular on social media, and the people who hold them will never be okay with that. They won't rest until they can jail the people who criticize them.