I have difficulty with this. It reminds me very much of the argument against video games, or "driller thriller" which lead to video censorship. Don't get me wrong, the availability of it is disturbing. However I would counter that it takes a person who is vulnerable for that to work on (ie take someone who is "center ground" and walk them to an extreme) its not an instant process. Again, we as wider society need to be better at spotting and supporting these types of people and equipping them with either a benign purpose, or the critical thinking skills to avoid extremist holes.

Where I do think we might agree is age restrictions. I don't think children should be on any type of social media that can host images or posts long term. (I suspect chat is less risk, so long as its timeboxed and has reasonable parental support.) Anyone less than 18 shouldn't be on facebook/snap/insta/tiktok at all, I don't think