As a gut feeling. The negative attitude to drugs coming from their hearts, the antiprohibitionist stance from their heads. So they are too practical antiprohibitionists. But here as well there are those that even being revulsed by the notion of drug use, somehow feel, in the tradition of John Stuart Mill, about whom I spoke in Toronto, that whatever your moral values, others are entitled to have theirs, again provided they do not bother you. This again is a logical position.
Drugs are bad, either from an emotional or from an intellectual point of view.
Prohibition is a logical consequence. These people are prepared to inflict harm intentionally to drug users. The harm maximisers. At best they consciously sacrifice a few to protect many. Harm reduction is not their first interest.