Yes, weed kills. But in a ratio compared to alcohol it is about 1 to 6000 to cause death (one being one unit, enough to get one person "high", the one unit being about a fifth of an eighth of 5 percent THC marijuana), while alcohol has a 1--6 to 1--10 ratio, depending on the person.

And yes, i know you were joking, but there are people who might actually take that seriously.