Unfortunately I literally can't imagine anything convincing coming out of the US's mouth given that case. It's not like we can Manchurian candidate sleeper cells in Russia using our influence, and I'd argue China also has similar limitations.

The worst I can imagine is "us bad" with a lot of easily disprovable half truths that only stand for idiots who believe whatever tiktok gives them. And if the politicians who support this ban are arguing that most Americans are like that, then they'd better be pushing for better education or else they are also nefarious (because why else would they want people to be susceptible to propaganda, but not XYZ's propaganda?)

I guess maybe my issue now is that it almost seems that republicans are trying to do their own propaganda machine, but are incensed that China might be stealing morons who are, as another commenter put it, ripe for radicalization. But that doesn't seem right because I'd be surprised if they didn't also have a bunch of outreach shit through tiktok.... Idk, this is already delving into conspiracy theory territory so I'm gonna just stop myself here.

But all in all, I totally agree with your last paragraph, especially "if you don't like it, then don't use it".