By the way, who died and left you in charge of what is and is not evil? There is not a single word about smoking pot being evil in the bible. Even one of the most dangerous drugs, alcohol, is not depicted as such, although the Lord warns of its abuse. He does not ban the use though.
The anti-gun nuts think guns are evil. Should we then make firearms illegal? If the fact that a group of people think something is evil is the criteria you use to make something illegal, then, by following your so-called logic, it's only fair to make firearms illegal, right?