People get high because it's there, not because they have to or go out of their way to procure drugs.
Alcohol works just fine and, again IMO (only), I'm not so sure there IS a craving for drugs.
Maybe zero likes his coke, but we in fly-over are, for the most part, too tired or committed to something else (like .. y'know .. a job, barry .. ) to really be such a massive consumer.
One more while I'm at it .... The oh zees I see the kids buy today last a week or more 'cause they're so damned expensive. Usually they cop enough to pass a few doobies around the campfire before gettin' laid.
Just sayin'
Conclusion;
There really IS no drug demand/problem in America, and if they stopped comin' in, we'd not give a rat's ass one way or another.
An expansion of the death penalty is a sure fire remedy for the elimination of the drug culture. Kidnapping, murder and rape, et al, should be reason for public hanging.