Well BBC has a division called "BBC America" which distributes their content in the US, which itself is jointly owned by AMC and anther US company called BBC Studios. I do not know anything about the details of this, but I imagine there were regulatory considerations when setting this up.
But anyway, my point was that the concern over foreign influence is not a new idea and has been something people were worried about even over a century ago.
I don't think that concern is entirely unwarranted, I just don't think it's justification for censorship. If TikTok were violating US laws and refusing to comply that'd be one thing, but "Kids prefer an app made by a company in China" isn't really good enough.
It's very strange that our government doesn't care that our phones are made in China, that damn near everything for sale on Amazon comes from China, that we're constantly getting Chinese products that are low quality, covered in heavy metals, and/or drenched in formaldehyde, yet a Chinese owned app goes too far?
Why doesn't this apply to websites hosted overseas generally, or for other countries besides china. I can access media at www.abc.net.au just fine.