Yeah, I have always thought that as well. Heck, drunk people kill when they drive and I have never known a pothead to kill anyone driving. On the other hand, I can't tell you how many friends I have lost to drunk driving, either killing themselves or others or both in 1 case.I have more of a problem with people who rail against allowing pot, but will drink. Aside from the ignorant federal laws on the matter, smoking pot and drinking are quite similar. If you use either lightly, or recreationally, there's no issue. There's only an issue when you do it so heavily that you don't want to do anything else, or do it while driving or working.
I think people are ok with drinking since "most" people do it. The same reason taxes are $4-5 on a pack of cigarettes and only .09 on a gallon of beer or 1.50 on a gallon of whiskey (just an example).