Online platforms are not common carriers, at least not according to Title II. Nor should they be. They shouldn't be forced to carry all content, and that's a good thing. 

Recent court cases in Florida and Texas have ruled this way, and the Supreme Court is due to write an opinion on the state-level rules that would have made it illegal to curate content on social media.

Removing the "right to censor" also means requiring blogs to host all comments and spam regardless of content.

The main issue on censorship and moderation stems from the jawboning at the hands of US agencies – directly or indirectly – which should absolutely be illegal.

Ultimately, nostr can win not because social media platforms will be "forced" to carry all content, but because online users will recognize that the censorious platforms suck and will choose to go elsewhere. I'd rather have that freedom to choose, and continue Section 230 as it applies to online platforms, than have the government make that determination.