> We still want something that's bad for us, so alcohol is the exception for historical reasons, but for (probably misguided) utilitarian reasons, we don't allow all sorts of drugs.
Our reasons for prohibition of certain drugs over others are far from utilitarian. If anything, they're anti-utilitarian. Compare the motivations for the 18th and for the 21st amendment.
"(We still want something that's bad for us, so alcohol is the exception for historical reasons), but (for probably misguided utilitarian reasons, we don't allow all sorts of drugs)."
or
"We still want something that's bad for us, so (alcohol is the exception for historical reasons, but for probably misguided utilitarian reasons). We don't allow all sorts of drugs."
The former suggests we prohibit drugs for utilitarian reasons, misguided but utilitarian nonetheless, the latter seems odd by itself?
Our reasons for prohibition of certain drugs over others are far from utilitarian. If anything, they're anti-utilitarian. Compare the motivations for the 18th and for the 21st amendment.