Yes, it's being bad at abstract thinking. There's not much that cocaine, heroin, or even meth can do to you that alcohol can't. It's indisputable that we've made poor decisions regarding what drugs to ban -- marijuana as a Schedule I drug? Really? -- and IMHO the reason for that goes back to the fact that we didn't have an appropriate basis for banning any of them in a supposedly-free society.

As other posters have suggested (and been duly modded down for it), prohibition isn't really about the drugs.