You are not even close. 50% of all traffic deaths are attributed to the most abused drug of all....alcohol.Holy crapola. You don't think that people drive while high on smoke? Guess again. Drugs are a factor in about 17% of traffic fatalities according to post-mortem testing.
Question for you: Why is alcohol, the most abused drug of all legal?
Hint: Those that don't learn history are doomed to repeat it.