"drugs" often means illegal drugs in colloquial use while alcohol is legal in most places, so the distinction has a use.
> I want to draw attention to how Singapore in particular somehow gets a pass for literal state-sponsored murder for smoking a joint instead of drinking a beer.
I wonder what's your motivation for such an extreme exaggeration. The article you linked quite clearly states that the "punishment" for consuming is a 6 months rehibilation which, while quite harsh, is very far from your claim of death penalty. You need to possess 500 grams of Marijuana to get the death penalty which is like a 1000 or more joints.