International agreements are routinely abrogated when they no longer suit one or both parties. Every country is guilty of this. Might makes right in geopolitic

International agreements are routinely abrogated when they no longer suit one or both parties. Every country is guilty of this. Might makes right in geopolitics. There is no international court to take a broken treaty to. Nation states pretty much always act in their self interest when they can. China thinks that it is in their self interest to do this. Someone can try to change their mind, but it probably won't be easy.