...."It's people choosing irresponsible  behavior".... Ha! Got you!  Of course pot is inanimate. But, once you have chosen to consume the inanimate object, even with INTENTION OF USING RESPONSIBLY....eg. I am going to smoke a couple puffs and then I'll stop. That is a choice of using responsibly.  HOWEVER  once having consumed your mind IS alterd. Period. Losing all inhibitions you no longer have a responsible mind. You choose to forgot your previous responsible choice and therefore act irresponsible SOLELY BECAUSE OF THE DRUG. So in essence it is the drugs fault. Of course that only applies to the addict, eh ?  And never pot ?  I've known of girls sold for an ounce of weed.