China was forced to become addicted. The US did it to itself.
People forget that the US benefitted greatly from forcing opium on China.
https://www.thenation.com/article/society/american-old-money-opium-trade-fortunes/
After Britain, the country that benefited the most from the China trade—and, therefore, the global traffic in opium—was none other than the United States. And in the United States, unlike in Britain, it is well-established that the beneficiaries included many of the preeminent families, institutions, and individuals in the land.