No one can hold anyone major state accountable for anything. If you're arguing that we should stop trade with all major sovereign nations, that's pretty much exactly what I'm addressing, it's a question of the US training to maintain hegemony.
Case in point : the murder of 3 million innocents and displacement of 37 million due to US imperialism in the last 30 years.
If this was about holding people accountable for atrocities, then the logical and easiest place to start is at home. Instead, we have the Hague Invasion act.
I assume you're being pedantic, because the answer to your question is obvious, but I'll explain what he meant anyway. Once the data is in China, in the hands of the Chinese government, their use of it might theoretically still be "subject" to US law, but as a practical matter, nobody could do anything to stop them from doing anything they wanted with it.
I was just explaining the poster's point. Personally, I think that most data produced/collected by social networking applications is worthless. All of these draconian privacy laws that have been passed, in my opinion, are nothing more than political theater and make little to no difference to 99.99% of the population. GDPR, for example, has produced nothing more than lots of annoying popups that nobody pays attention to, and billions of dollars in fees for compliance consultants. I can understand the government banning people that have security clearances from using certain apps, but blanket banning an app seems like an overreach.
This has nothing to do with Uighur genocide. The is absolutely not some political pressure to get China to stop, or even let in UN auditors. Holding China accountable does not mean just randomly banning products.
Someone from UN counter terrorism went and met some Chinese diplomats. The statement mentioning they "reached consensus" is not even clear about what the consensus is about.