Libel is already illegal. As are calls for immediate, targeted violence against individuals (the SCOTUS ruled on this a long time ago). Types of harassment are also illegal.

Trolling should be censored? Seriously? Who will decide what is trolling? Who decides what is harassment? Who decides what is hate speech?

You don't need media censors to decide what is illegal. We have police and courts for this. What you are calling for is privatizing policing.

Big tech companies - as they are now admitting - are under direct pressure to censor by the government. That is tyranny. That is exactly why we have the first amendment, and exactly why the government wants big tech to continue to be big tech - so that they can censor through them (also illegal).

Allowing free speech isn't anarchy. It is what saves a country from anarchy.