In a hearbeat. The crystal ball would also show a 50 BILLION DOLLAR per YEAR decrease in the federal budget, comparable decreases in the 50 states, and I'm not sure just how many, but many tens of thousands of bureaucrats, narcs, prison guards, lawyers, and so forth forced to do legitimate work.
How can you even compare the damage an addict causes to himself and those in his immediate surroundings to the society-wide (and world-wide, when you factor in the things that hidden drug profits fund) damage done by lawyers and bureaucrats? One crooked cop is a much greater danger than any number of addicts
One of the main reasons we have pot prohibitiion is that FDR didn't want to lay off the alcohol T-men after the 21st amendment passed. I really want to excise their metastatized progeny from public life.