Once the people untether themselves from an external moral code (God) and abdicate their responsibility for self-control, they essentially become ungovernable under our system of self-government and can therefore no longer be trusted to make wise decisions. This is why the breakdown of society inevitably leads to dictatorship.
Permitting such people to have unfettered access to mind-altering drugs (something that earlier, more mature generations handled without trouble) will only accelerate the current societal decline. Unfortunately, a large portion of the "American people" of today simply aren't mature enough to handle it.
We as conservatives can't on the one hand say (rightly) that the liberal parasites are a danger to the country, but on the other hand think that making it easier for them to obtain psychoactive drugs will somehow lead to Libertarian nirvana. I understand the principle, but in today's world I am afraid that some restrictions are necessary.
Then change the constitution to give the power of regulation of education, agriculture, drugs, etc... to the federal government.
/johnny