I like stupid pot heads. If they become pot heads they won't be working, which leaves more jobs for me. And if we legalize it then farmland prices will soar as everyone will want to be growing it, the economy will grow, and since quality workers will drop I will be able to demand more money. Pot heads will lose their houses and such because they are not working, so I will be able to snatch them up cheap. Eventually they will not have enough money to buy even cheap pot so they will get a low end job in the service industry and end up serving me. So in effect, I can get cheap labor and service, make more money, and live out my dreams since they will be too toasted to live out theirs.
Or something like that :)
Pot heads aren't that stupid. It has short term memory effects, similar to alcohol, but that's about it. Now if all they do is smoke pot--like a drunkard--they may have a problem.