Because China has been engaged in a civil among itself with a US or western friendly faction surviving on Taiwan.
This is the reason why the other world leaders dont recognize Taiwan.
There's also Tibet... China has secret police stations across the globe spying and harassing citizens of nations who have expatriated...
The Philippines... Japan... Opium wars...
Not really a enemy but a frienemy.
Sieze on this, use his narcissism for good and bring somewhat normalcy back. Tell Trump if Vlad doesn't listen then you have to be tough. He is willing to be tough to our allies MX, CA this could be a turning point