Earlier quoted context omitted.
I presume the main reason for the controversy is the prevailing dogma "Drugs are evil". This dogma has been used to enact countless bills of legislation in most rich countries, which in turn have encumbered the justice and police system, which in turn have put thousands upon thousands of people into to the correctional system for years. After all that busywork, lives destroyed and taxpayer money wasted, it is really…
I believe there is some sort of nonsequitur on the proposed argument. You can stop the war on drugs and keep the "drugs are evil" narrative. It's called decriminalization. Stop bothering people for possessing, producing or using drugs, do as you want with those trafficking, and keep them illegal. This could be done progressively without loss of face by government. Oh wait, that's what the article is about! Drugs, inc…
If you keep them illegal then you lose control. If they are made available from your local chemist then you can legislate for quality and strength.
Keeping them illegal also has a massive unwanted side effect in terms of encouraging criminal gangs and violence. All that would go away if customers could just stroll down to their local Boots and buy a packet of spliffs.