There probably are. But so what? People who drink alcohol aren't a problem, unless they drive while drunk. And attitudes about drunk driving have changed radically in the past few decades; it was once taken very casually, and carried no real social stigma at all (except in circles where drinking itself was frowned on.)

Keep the pressure on for tough drunk driving laws and keep hammering home the consequences of this behavior, and community attitudes will continue to shift away from tolerating drunk driving. At the same time, maybe we can ramp up some of the same social and legal pressure against driving while struggling to stay awake (which I've done, and I realize it was as dangerous and as criminally stupid as drunk driving), while chatting on cel phones, and other predictable and avoidable sources of lousy driving.