Then we should set strict laws about what kinds of data apps can harvest from their users and hold all of them responsible, not just the ones from scary china.
It is not the data collection but where the data is sent and how it is used. You cannot enforce US laws in China but in the US you can. If it was an EU company, relations are good enough to where US companies are being fined and paying billions to the EU with the understanding that similar free trade regulations can happen unlike with hostile China
Well, there's definitely a strong argument that none of the data of EU residents can be processed in China or under Chinese jurisdiction, based on previous court rulings.
The US has refused to consider similar legislation but that would be a way to keep TikTok and limit data collection on US citizens and require it stay in the USA.