Both you and falcolas are off base. Porn restriction for minors is not controversial, legally. Your first amendment argument will go nowhere. So then the ques

Both you and falcolas are off base. Porn restriction for minors is not controversial, legally. Your first amendment argument will go nowhere. So then the question is, should something that harms young minds be restricted? You can argue that TikTok doesn't, and that's a fair argument to make. But if your argument is "yes, but it's free speech" then I think you lose.