> Social media platform users have no right to free speech on the site. They do have a right to start a competing website that allows free speech, though.

And then the new website becomes popular, and then authoritarians start demanding that the new website ban speech they don't like, and then people who want free speech say that we don't want that and you come back to tell us that they're a private company that can do what they want.

They're also a private company that can do what we want.