The American entertainment industry drives the drug market. Period. You will never reduce the size of the consumer market in the States. It is vast and growing.

The best way for China to deal with Trump and future US Presidents in the long run, is to flood the country with drugs. The Latin brothers are doing a fine job and so are the "Stan" countries.

This approach bleeds the country fiscally, morally that only a draconian solution will resolve. See: Duterte. As a matter of fact, a side note, Trump gave his thumbs up support to Duterte Drug War Solution...this means another slippy side down the rabbit hole for the US.