Citizens. Through lawsuits. Currently we can't because of Section 230.

Nonsense. If social media users engage in fraud, slander, or libel then you can still hold them accountable through a civil lawsuit. Section 230 doesn't prevent this.

The "editorializing" may possibly be applied i think (not a lawyer) when the platform's manipulation of what a user sees is based on content. And the Youtube's banning of specific Covid and election content may be such an "editorializing", and thus Youtube may not have Section 230 protection at least in those cases.