Exactly, it is a social problem. The problem is not chemicals, the problem is the society (or, sometimes, personal) failures that drive people to abuse chemicals because they help them avoid dealing with their problems. We have the same problem as drug addict has, only on societal level. Drug addicts feels bad and takes drug to temporarily feel less bad (which get him ever worse later). We feel bad that we have these problems and we take the drug of tougher enforcement and feel-good prohibition and imprisoning people that defy our good intentions - which makes us feel better for a short while with disastrous consequences in the long run. We as a society have to get off regulation and enforcement drugs and learn to deal with the problem as a healthy, responsible adults do. We learned to handle alcohol, we can learn to handle other chemicals too. It would be a long and painful recovery - and we didn't complete the "recognize the problem" step yet! - but we must do it if we want healthy society again.