It's a serious health concern, particularly for harder, more addictive, and more debilitating substances.

For the same reason the state has a role in regulating away lead in gasoline and paint or shoving those fucking Sacklers and everyone that facilitated their pain-pill scam in an Oubliette for all eternity, we have a reason to prohibit the commoditization of narcotics, especially toward malicious ends.

Like, is there any industry more reflective of the horrors of capitalism than the tobacco industry? Fuck cigarettes. Fuck the merchants of death that propagate them. And fuck anyone who leaps to their defense.