What is debatable?
If the legalization of drugs has any positive effects.
Imagine Heroin would be legal and affordable, everyone could get it and BOOM 40% of the population would become addicted because they have tried it and liked it.
Can you imagine what would happen to Europe if that would happen?
Also, Amphetamine, Cocaine and some other drugs really fuck up your brain, you wouldn't want too many people addicted on that.
In a perfect world, drugs like that would be comsumed by the work slaves to make them happy and keep them from rioting. From time to time, we would spend some drugs cut up with poison, to weed out the weak and the most addicted that cannot work anymore.
We would not take drugs, we would be healthy and wealthy.