Social media can only survive because of safe harbor provisions. If sites become responsible for the content they host, social media as we know would instantly die out.

So would a vast number of things. github, blogs, cloud, public web hosting of almost any kind.

Sure. I'm not saying that I think it would be good, just that it's possible.

You are not forced to follow or interact poeple you disagree with.

Funny you say, but on social platforms we know you are kind of forced, through suggestions and ads.

Newspapers "force" you to read articles by their writers and ads as well... This has nothing to do with social media.

Newspapers are curated and responsible for what they publish.

Making public comments anywhere online impossible? I don't think that's helpful.

Why wouldn't it? Proven good formula and a hole in the market. A dozen clones would spring up immediately.

Because the government closed something that acted exactly like it before?

Aka chilling effect.