I would be interested in seeing a study showing the numbers of casual drinkers v. casual hard drug users. And % of addicted drinkers and % of addcited hard drug users.
In my personal opinion hard drugs are already as damaging as alcohol. I would not expect a huge spike in hard drug use by making it legal but there an increase.
I recently watched the PBS series "Prohibition." I already had strong feelings on the drug war, but watching that documentary made them that much stronger. Alcohol was a big issue, always has been. Banning it caused so many more issues. So many more. The cure was certainly worse than the disease and prohibition never had a chance at eradicating the disease. It was like taking chemo without having cancer. Made no damn sense.
Anyway, where wine and beer had been the most popular drinks, after prohibition hard liquor became the drink of choice. That trend lasted into the 60s, I believe. Slightly fewer people drank during prohibition than before, but those who did drink were drinking more.
There were some interesting (possibly positive) effects. The pre-prohibition saloons were pretty much men only. Speakeasies included plenty of women. The women became empowered in a world they had been excluded from.
But the worst effects of prohibition were two-fold, in my opinion. First, it created profitable opportunity for low-life losers who were willing to live outside the law. Not just decent money, but these petty criminals became rich and powerful. Prohibition opened that door for them. That also opened the door to corruption. Police were being bought, judges, DAs, all sorts of folks who before prohibition wouldn't have had either the opportunity nor motivation to take bribes and become corrupt. That leads to the second, which I think is underestimated. The creation of scoff laws. A general lack of respect for the law. A lack of respect for law enforcement. An entire society that looked the other way. A society in which the law is just part of a game we play.
Pretty much all of that can be said for drug prohibition now. The prohibition pushes people toward harder drugs, not the other way around. If you're going to be a law breaker and live in that world why go half-way? The penalties for marijuana are pretty severe if you actually get arrested and charged. The high is a little underwhelming for some.
Disputes in the drug world cannot be resolved in the courts, the criminals have to enforce their own justice.
In order to be a simple user you have to interact with dealers. Legalize it and you don't have to mess around with criminals to get your fix.
I don't know, the list goes on and on. haven't even re-mentioned the disproportionate way these laws are enforced.