It's principles vs pragmatism. We have an example of one approach that works: Singapore. Mandatory execution of drug dealers, carried out three years after conviction, not three decades. That obliterates drug addiction as a societal ill.

On the other hand, the philosophical stance I agree with is that one human being does not have the right to dictate what another human being does with their own body, so long as they are an informed adult.

Our unwillingness to truly commit to our beliefs and values, whatever they are, gives us the worst of both approaches.