So is drug prohibition.
Comparisons with prohibition are popular but flawed.
Opinions vary. It took an amendment to the constitution to outlaw alcohol, which IS a drug, regardless of how long it has been around. This failed federal war on drugs is just as unconstitutional as the departments of education, energy, health & human services, and housing and urban developement. If you want your drug war, fine...do it legally like they did with prohibition in the 20's.
OD: So is drug prohibition.
Try to keep the argument straight here: drug use is a social phenomenon. Drug prohibition is legislation.