Not sure it's just kids
I was an adult who thought drinking coke was normal. Now I drink water.
China can access some target in the US who is on tictok and get their realtime location.
Know anyone that uses AliExpress? Or plays Genshin Impact?
1. China banned Facebook after it refused to cooperate with law enforcement following the Urumqi riots. Google and others decided the cost of following censorship laws was too high compared to the return and decided to retreat. Other American tech giants like Microsoft, Apple and IBM have a presence in China. However unjust China's laws may be, there's a qualitative differences between applying it to all companies in the same way vs. what the US is attempting to do with TikTok.
2. From an American point of view, this strikes true. For the rest of the world there's hardly a difference. If any, the US has proved it is willing to enforce its will globally against non-citizens with all means possible (see fe. Julian Assange).
3. Youtubes algorithm is strongly driven by controversy, Instagram seems to be responsible for a large amount of body dismorphia and depression in young people. I'm all for more research and stricter policies to suppress this, but just claiming things without a shred of evidence isn't helping the discussion along.
I am not saying that those are true or that I agree with them, but those seem to be the typical arguments.