He IS right though....
Despite his rather plebeian writing style, his point is rather valid - it's time to consider treating drugs as a medical addition and social problem, and remove the criminal element. Al Capone did NOT want Prohibition to end, neither did the other Mafia bosses, and you can be sure the one thing the drug lords fear is an end to criminalisation. Once Prohibition ended, the Mafia was forced to turn to gambling, prostitution, protection, and eventually drugs distribution to try and make up for the hole in their income that legal liquor created.
The drugs lords have no such easy ability to form non-drug criminal enterprises, as most of their money and power is abroad. Not to say they won't try, but none of those enterprises have the ease of money as drugs do today.
As another poster has posited, we ARE creating an independent narco-state, complete with it's own army, navy, and huge numbers of military-grade weapons. That is a far, far worse result for our civilization than any uptick in drugs use is likely to be under decriminalisation.