I agree that my experience with FB/Twitter vs. TikTok is as you describe. I'm not sure that our political leadership understands how social media work well enough to see what you're describing.
I do think that they are angsty about a foreign government having control over a major social network. Imagine if a partially Chinese-owned company had to make the call of whether or not to ban the account of a sitting US President, for example. Plus, I have zero doubt that the US government requires Microsoft, Facebook, and other US tech companies to give them access to data in extremis, and there's no reason for the US gov't to expect China not to.
I do think that they are angsty about a foreign government having control over a major social network. Imagine if a partially Chinese-owned company had to make the call of whether or not to ban the account of a sitting US President, for example. Plus, I have zero doubt that the US government requires Microsoft, Facebook, and other US tech companies to give them access to data in extremis, and there's no reason for the US gov't to expect China not to.