"Americans have real privacy concerns about their online data."
No. We do not.
If Facebook, Amazon, and Google's vacuuming of personal data hasn't proved it, TikTok surely closes the case.
We are happy to trade every scrap of private data, that we know will be used in problematic, unregulatable ways by a non-allied, semi-antagonistic, foreign govt in exchange for a more convenient source of short, entertaining videos.
A small, vocal few may care, but "Americans" broadly do not.