This is america achilles heel, its drug addiction problem
China can make it a lot worse by ending drug trafficking cooperation with the us and increase fentanyl export to the us
No reason for China to actively enable it, they are doing a great job killing their country on their own.
Almost every single major American city is a shithole compared to many major Chinese cities. The homicide rate nationally in America has reached 7.5 per 100,000 in 2020.
That is literally
over 1500% higher than in China.... like what the hell.
Imagine comparing US major cities to Chinese major cities... the difference would probably be 5,000% or more. In almost every way they are heading to 3rd world level, at least socially.