Starvid:

Secondly, there is a fundamental difference between selling drugs and arms. Drugs are criminal to sell.

Damn right there is a fundamental difference between arms and drugs! Arms are made to kill people. Drugs make you high, and provide a certain amount of fun and entertainment. The fact that the former is legal and the latter illegal speaks more to the failures of this world than give a basis for judgment of persons and actions. For me, it is quite clear which of the two goods is morally repugnant.

As they said in the good old days: drop acid, not bombs!