I go over three counter points to the argument that legalizing drugs will hurt society by adding more vices.
Three points are:
Legality is not a licence for use. Just because it is legal does not mean it is encouraged.
Making drugs illegal makes them dangerous because of the issues of purity, social ostracizing (being a criminal), and ignorance of drug effects.
Allowing for some vices and not others is a xenophobic position as it does not allow foreign drugs to be accepted although the legal drugs can have more or the same negative health outcomes.
Don't be a xenophobe, support legalization.