The simple fact of the matter is that regulating substances is not an enumerated power of the Federal government, not is it an enumerated power of most state governments. Some self described "conservatives" think that the concept of a constitutional republic is burdensome. Amusingly so do those on the "left".
I guess, once again, those who believe in a limited government, by the people and for the people, based on reason and the laws of nature, are once again branded radicals.
Branded Radical placemarker.
;^)
Seems more a drug lust trying to use the constitution as a shield.
I would imagine that pedophiles, bigamists and other similar oddities could use your arguments in their slants on ways to force their way into the mainstream society as well.