https://popehat.substack.com/p/section-230-is-the-subject-of-the
From Popehat "Very simply put, Section 230 is the law that says that, if I post something defamatory on Twitter, the victim can sue me, but not Twitter. It also says, again put simply, that Twitter has the right to moderate stuff on its site as it sees fit. The language of Section 230 is fairly clear, for something written by Congress. There is very little controversy amongst actual courts about what it means. The legal impact of Section 230 has been well-established by courts for decades, and efforts to evade it have been consistently rejected.
Audio form: https://legaltalknetwork.com/podcasts/make-no-law/2019/08/deplatformed-social-media-censorship-and-the-first-amendment/
You really like reading? https://www.techdirt.com/articles/20200531/23325444617/hello-youve-been-referred-here-because-youre-wrong-about-section-230-communications-decency-act.shtml
I will agree that tech companies inconsistently enforce their terms of service. However, it is unlikely that giving the government more power to regulate the internet will do anything to improve that.