>>Exactly like China did in the 1840s. Oh, wait...<<
That sounds more like the effects of alcohol on American Indians.
Until the 1970s there were no laws against drugs in the USA. Why were we not a stoned society?
It was only when LSD and the like co-joined the hippie movements that Society decided we needed to Stop This.
Now we imprison thousands and spend trillions in a meaningless war against an invisible enemy.