Are you serious? I have tried a inocent joint/weed or two on two parties (the thing you smoke, gets high on). Do I need to die because of that?
I understand that due to the demand for it, people are suffering around in the world, but it's wrong taking everyone as one/the same. There are various types of users, and killing everyone would be.. just mean.
Don't get me wrong, we would be better off without them, but I think you are a little radical now to be honest.