You can and should do that, but it's not sufficient to individually avoid harm. You still have to live in a world where most people have their behavior manipulated, and that will impact you. Even from a purely selfish perspective you should support efforts to stop this sort of control broadly with legal action.
exactly. I did all of OPs suggestions, decade ago (never had TT to begin with) and still live in a sick society surrounded by the influence of these platforms
Fair point, and nothing would make me happier than TikTok and Instagram being shut down, at least for minors.