This is a loaded topic. To be honest if my father was as high on marijuana as he was drunk on alcohol I'd be no better off being brought up by him.
It's all about how it's used and both substances are open to abuse. When irresponsible people dumb their brains with either substance - well lets just hope they're not in charge of people who are relying on them for security.
Both substances have a place in the world. It's been proven that cannabis has major health benefits. Alcohol has major benefits also. I personally believe cannabis is not in mainstream use because of commercial interests. As you are no doubt aware the species of hemp used for oil, clothing, paper, bldg industry, and food is different to the mind altering cannabis that has been blamed as the main reason it's illegal. But of course governments keep y'all ignorant and dumbed down by those chemicals in crap food that the majority of tv watchers don't know that.
Pot smokers are the minority and I don't really care if you bong yourself to nirvana. But if we could all stay sane for a day and get this hemp product back into mainstream production for bio-fuel and all the other wonderful uses it has, the world would be a better place.