I'm not sure how antitrust enforcement would address content problems. Assuming a social media network could be split off from a larger company as a separate line of business, the legal operating environment influencing its content moderation, algorithms, and so on wouldn't immediately change, just because the business was restructured. I'd expect far more fallout from the financial and operational ramifications, not all of which would be good, than any legal ones.
I'm still not exactly sure how Section 230 relates to any of the issues in public discussion. Only that it's good for the platforms, and some folks want to hurt the platforms, so Section 230 must go. I've seen at least one draft of a proposed bill for adding additional conditions to Section 230, but they reminded me, more than anything, of hypothetical First Amendment questions from law school exams. It's by no means clear that platforms, especially new platforms, will simply do whatever you tell them to do in a condition to Section 230.
I'm still not exactly sure how Section 230 relates to any of the issues in public discussion. Only that it's good for the platforms, and some folks want to hurt the platforms, so Section 230 must go. I've seen at least one draft of a proposed bill for adding additional conditions to Section 230, but they reminded me, more than anything, of hypothetical First Amendment questions from law school exams. It's by no means clear that platforms, especially new platforms, will simply do whatever you tell them to do in a condition to Section 230.