If it's a private company that con do what it wants, like blocking political opponents, it should not be under safe harbor protections.
That's the point in yelling about this. If Elon wants a private forum for him and his mates, he should also be fully responsible when his mates posts child porn on his servers.
I'm not sure we need to hold him responsible for shit he said in the 70s when he raped a child in the early 2000 and lead and insurrection this less than 4 years ago. There is plenty of new things to use against him.