How many times do people need to be reminded that Tiktok is NOT a Chinese company? It is registered in Singapore and primarily owned by American investment, that makes it a legally Singaporean company with American owner.
Besides, every business operating in a country must follow the law of that country, like it or not. It is the same reason that X, FB and Google are not operating in China. You can argue against the base of US making such law, but you can't blame Tiktok following it.
Your conclusion seems to be more intended to accuse China for the wrong than blaming US for the wrong. Why? What you are doing is the same as what US and the collective west have been doing to provoke China into a fight that isn't China's. Honestly, I think many anti-western people outside of China are equally dangerous to China as the West. These people just want use China as a shield and distraction.
And even then US politicians accuse TikTok of being a Chinese tool for propaganda in the U.S. Just goes to show how far gone they are.