In response to a post on Gizmodo about the humane and sensible NYPD program of police officers carrying Narcan to give to overdosing heroin users, this comment appears:

So that’s the opinion of MartiniGuy.

Here’s a chart showing the harm factor of different drugs, according to a major study from Imperial College London, which considered both harm to the user and to others:

 And here’s a chart showing deaths from various drugs, showing a larger and growing alcohol deaths problem and a smaller and steady heroin deaths problem:

I think almost everybody is probably like MartiniGuy: alcohol abuse is “normal,” heroin abuse isn’t, so let the heroin users die. Our capacity to fit our moral understanding to our personal behavior is very powerful.