The Trans-Pacific Partnership TPP was a big attempt by the US political establishment to economically isolate China with most of Asia. Unfortunately, because it was also designed to bypass the US voter, it was not very popular.

Yeah I'm hoping the new administration will work towards rejoining, I got into lots of heated debates about it with friends when it was a part of Obama's administration.

Considering that the international community doesn't / couldn't do anything substantial about NK and the Rohingya, beyond sharp words, well, it's not surprising. Of course, note that China had an interest in the status quo on those crises.

They figured out that they can get away with genocide as long as they do it in slow motion. The end result is the same, the disappearance of the Uyghurs as a people, but it takes decades instead of years. That's why they are sterilizing so many people, while keeping many imprisoned indefinitely with no opportunity to start a family. The torture and rape is just incidental to having a million or so non-persons imprisoned.

Business matters, you know, and CIA doing their work to get more bargaining chips.