If/when it is a factor in 1/3 of the traffic fatalities, ya, probably.
What about
sleepy?
In fact, one in every six deadly car crashes results from a fatigue-impaired driver, estimates the National Highway Traffic Safety Administration.
Perfectly legal, except in Jersey. My point is that you're not punishing impairment, you're punishing blood content.
Particularly if it is completely common knowledge that driving with a full bladder kills thousands of people, it is completely trivial to empty one's bladder and thus not expose others to the danger, and the people who are driving with a full bladder do it so for their own perverse enjoyment like boozers do.
It was my understanding that drunk drivers drive drunk because they want to go somewhere (typically, home), and are drunk. I was not aware they are getting a sick thrill from it. Do you have a study that shows that, or is that just your personal opinion?