[DiogenesLamp]

Y'know, like Roe v Wade's "emanations" from "penumbras" or Wickard v Filburn's "substantial effects" - a new frontier in the 'living Constitution'.

No, that's just Libertarian Anal blowing smoke. Drugs have actual BODY COUNTS. They aren't made up phantoms, they really maim and kill people.

They are a real, actual, threat to the population of these United States, and they are therefore addressable by that part of the constitution which gives the government the power to neutralize threats.

[ConservingFreedom]

Y'know, like Roe v Wade's "emanations" from "penumbras" or Wickard v Filburn's "substantial effects" - a new frontier in the 'living Constitution'.

Drugs [...] aren't made up phantoms

Your "umbrella" of the Defense Clause is a made up phantom.