[throwawaysml]

Nobody's saying being drunk is an excuse to do things or gives you permission.

Some people have repressed thoughts, feelings, etc. that they might act on when dis-inhibited. I recall one coworker being drunk and going from happy to angry repeatedly and another one pouring out his heart to me about his unhappy marriage. I discarded those events and never asked them about it, but I imagine that if this is what happens in a purely vocal way, then someone drunk acting in ways they only didn't before because they were sober means there are deeper issues only hidden and controlled by the rational mind prevailing during sober times. This is why those that went through something like the 12 steps become fearful of getting drunk/high again, since they recall their destructive side. Some people have "demons" they only release if dis-inhibited by being drunk or irrational due to a primal instinct in control.

This means some people should never drink at all.