Guarantees of insulation from bad actors from major tech companies unfortunately are not generally credible, and what is credible, at least relatively speaking, are guarantees imposed by technology itself such as E2E encryption and zero knowledge architecture, as well as contextual considerations like the long term track record of specific companies, details of their ownership and their physical locations.
This all suggests to me that the 'Operation Texas' technical controls were actually in place and pretty good (or dude in China would have just run some SQL himself), and what isn't in place is hard process control to prevent US workers from emailing stuff to China. Which, you know, is exactly what Congress could pass a law to deal with.
Which I suppose is a different way of making the same point as you.
ByteDance is; TikTok is not. TikTok is headquartered in USA and Taiwan. Why is that not part of the analysis? The CCP can control/influence ByteDance, the US can't do anything about that. But it could do a number of things to prevent ByteDance control/influence on TikTok, and it jumped directly to "must divest".
Congress could have passed a law banning TikTok from transmitting any user data back to ByteDance/China, for example. Why not do that, if that was the actual concern?