That would be hard to get data on, because alcohol is mostly legal and meth and heroin are mostly illegal.
So you have a huge confounder: it seems likely people who are willing to do illegal acts, are more likely to become unemployable.
So if meth was legal, and alcohol was illegal, the situation might be reversed.
(I'm not saying this is true, but to make your statement you'd need to carefully exclude the possibility of this effect.)
Btw, heroin and other concentrated drugs are popular partially because we banned comparatively milder and bulkier alternatives. Eg opium ain't as hard as opium, but it's just as forbidden, and its bigger bulk makes it less profitable to smuggle.
It's not on shelves because it's a precursor chemical to actual meth manufacturing, not because it's a dangerous drug (otherwise it'd be Rx-only, like the other meth-like drugs).
Neither ephedrine, pseudoephedrine, or phenylpropanolamine are the reversed-chirality methampetamine. "Regular" methamphetamine is dextromethamphetamine; the other version is levomethamphetamine.
Opium literally gets scraped off of poppies. Anyone can actually obtain it with some patience and know how. It would take an enormous individual effort to collect enough to use, let alone hurt oneself or sell any.
Yet, ridiculously, sometimes people who have simply eaten a lot of poppy seed bagels or something end up getting tagged as heroin users, because the metabolites are so similar. Never mind that the quantity of poppy seeds you'd have to ingest in order to feel even a little bit of opiate effect is probably more than a human can physically consume. It gets picked up and flagged because the tests are that sensitive.
So you have a huge confounder: it seems likely people who are willing to do illegal acts, are more likely to become unemployable.
So if meth was legal, and alcohol was illegal, the situation might be reversed.
(I'm not saying this is true, but to make your statement you'd need to carefully exclude the possibility of this effect.)
Btw, heroin and other concentrated drugs are popular partially because we banned comparatively milder and bulkier alternatives. Eg opium ain't as hard as opium, but it's just as forbidden, and its bigger bulk makes it less profitable to smuggle.