US prohibition on alcohol and to the large extent performative "war on drugs" showed what criminalization does (empowers, finances and radicalises the criminals).

Portugal's decriminalisation, partial legalisation of weed in the Netherlands, legalisation in some American states and Canada prove legal businesses will better and safer provide the same services to the society, and the lesser societal and health cost.

And then there's the opioid addiction scandal in the US. Don't tell me it's the result of legalisation.

Legalisation of some classes of the drugs (like LSD, mushrooms, etc) would do much more good than bad.

Conversely, unrestricted LLMs are avaliable to everyone already. And prompting SOTA models to generate the most hardcore smut you can imagine is also possible today.