And yet that significant portion of the population somehow manages not to descend into a life of lawlessness even though meth is incredibly easy to come by almost anywhere in the country.

I'm pointing out that it's absurd to attribute problematic behaviors to the mere consumption of drugs. We severely restrict freedoms in the name of a battle against symptoms rather than address underlying causes. Worse is that our waging of the battle itself is a vicious cycle, serving only to worsen the very same symptoms that it supposedly seeks to address.