system
Given the following post, respond as if you're commenting on Reddit:
human
CMV: All drugs should be legal

Yes, I mean crack and LSD etc. I wouldn't touch substances such as these for health reasons but I don't think I or anyone else has the right to forcibly prevent another adult from voluntarily using a substance. I think the effect this prohibition has on law enforcement is huge, meaning it puts a ton of cases on the department which takes away man power that could be used to lock up actual criminals (murderers, rapists, thieves, child molesters). As we've seen with the prohibition of alcohol, making substances illegal drives legitimate businesses out of the industry, i.e. only gangs, mafias and thugs will take part in the sale of such substances. This provides jobs to degenerates and gang members, and a source of revenue for organized crime. If all drugs were legal, Walmart and Amazon would put MS13 out of business.
gpt
Drug use have a lot of externalities that go beyond a single individual "voluntarily using a substance".  Addiction is a chronic health problem that society pays for in many ways. They are less productive and often can't hold a job. They require a lot of public health services that society has to pay for. Addicts are more likely to harm themselves and others while under the influence. Finally, addicts will commit crimes to fund their habit if need be.