Yes, alcohol can dehydrate you, but post drunk not during....besides tons of people go through workouts sober and still dehydrated....
I think you're arguing against the lazy stoner stereotype, which I wasn't pushing....I'm a lifetime stoner and all around functional druggy, I know people can do shit while high......but the limits of physical exertion put on you when you're high on weed is stark....I wasn't talking getting high and doing some curls, I meant a real balls to the wall workout and I don't see a high person making it through