Kat Kid likes to think that you cannot die by simply smoking marijuana.. ie it cannot kill you directly.
However, alcohol can kill you directly, but when people are killed by drunk drivers, it's not categorized as a death by alcohol, but rather a death by an impaired driver.
Accidents happen where marijuana is involved all the time. Surely, Kat Kid is not a proponent of legalizing something that would lead to the deaths of innocent people..
Or perhaps, Kat Kid is just looking for a reason to get high, and the best he can do is come up with a "direct" link.
I find it .. funny.