Ok, replace my sentence with "The New York Times must shut down unless all Chinese foreign owners divest"; does that change the analysis?
Yes, because the NYT is a publicly traded company. And it is majority-controlled by a single American family - the Sulzbergers. I'm not sure you could argue that a Chinese national owning a single share of NYT stock could have any kind of sway on the operation of the company. Could the same be said for the relationship China has with TikTok?
The ban is not rooted in the concept ByteDance has a minority of investors who are Chinese citizens so any comparisons framed around that concept will not change the analysis. The reason for the ban, agree with it or not, is the perceived control and data sharing with the Chinese government made possible by many things (mainly that they are HQ'd in that government's jurisdiction and then have all of these other potentially concerning details, not that they just have one of these other details).
If the NYT were seen as being under significant control of and risking sharing too much user data with the Chinese government then it would indeed make sense to apply the same ban.
Personally, I'm still on the fence about the ban. On one hand having asymmetry in one side banning such things and the other not is going to be problematic. On the other the inherent problems of banning companies by law. Such things work out in other areas... but will it work out in this specific type of example? Dunno, not 100% convinced either way.