Section 230 allows Facebook to do moderation without exposing it to liability for everything on the platform. Look at the original motivation: Stratton Oakmont

Section 230 allows Facebook to do moderation without exposing it to liability for everything on the platform. Look at the original motivation: Stratton Oakmont v. Prodigy, where Prodigy's anti-porn moderation meant that Stratton was able to sue them for defamation. Revoking it would mean Facebook would do less moderating. I do not think this will have the effect on disinformation that you want. One thing to note here: Stratton Oakmont was suing Prodigy because someone posted a comment saying that they were criminals. The subject of the comment, Danny Porush, went to federal prison for securities fraud. All this is to say: the original comment was likely true and the lawsuit was disinformation.