In lieu, they'll take TikTok's subservience in giving them access to the data, as with all the other social media companies. It's the one reason I think my data is SAFER in TikTok than in Facebook. If the NSA had a backdoor into it like all the others, they wouldn't care.
I'd argue you just ban apps from countries who wouldn't allow such an app in their region. US social media apps are not allowed in China... seems fair to do the same just on that basis.