There are specific drugs out there, that permanently disable your ability to cognitively function in a reasonable manner. Heroin permanently alters the way you

There are specific drugs out there, that permanently disable your ability to cognitively function in a reasonable manner. Heroin permanently alters the way your brain measures its dopamine levels. PCP causes all sorts of serious mental harm, same with crack cocaine. These should be regulated the same way we would regulate any other chemical that hard those sorts of toxic affects. But people wouldn't do those drugs, if there were alternatives available that created similar feelings, that were legal. And that's the crux of it. Many drugs have little to no negative affects (compared to nicotine / alcohol), and could be used without horrid ramifications if they were legal and their purity levels were regulated. No one would do crack cocaine, if a legal safer variant of cocaine was available, for example.