Presumably every user appreciates the anti-spam filtering these sites do, and anti-scam/phishing, but there should be a separate checkbox (ticked by default) for "Remove misinformation about covid/vaccines", and one for "Remove misinformation claiming the election was stolen", etc.

Then the social media companies can say to governments "If you would like all users in your jurisdiction to be unable to opt out from these categories, please pass a law requiring us to hardcode these settings for them, and we'll update our UIs to tell users why they can't opt out."

Better yet, the social media companies should say to governments "Please provide your own list of which posts are misinformation, and we'll make sure that users see a blank page saying 'Your government has deemed this post to be misinformation' instead of the content they want".

It isn't there wasn't a lack of social platforms which didn't try to remove moderation "because of free speech" but they don't last long before they collapse under their own crazyness, and the crazyness of their users.

I imagine such a platform would turn out like Reddit, only better, since people who opt out of the consensus reality would probably have their messages only visible to like-minded users, unlike on Reddit where each user is trusted by default in each subreddit.