Yes government should not intrude into individual lives, but we're not to a Libertarian legislature yet and government makes laws about the way things ought to be, right now!!! I left the Repellican party recently in disgusted silent protest, but it's like the religion I was raised in... I haven't been a member in over 40 years, but I'll probably never join another one!
I don't need clerics to lead me to Christ and I don't need either Repubs or Libertarians to lead me to the way things ought to be. I'll rejoin the Republicans when they revive Reagan's 11th Commandment and straighten up their ignorant act. They're so out of control right now that Reagan couldn't win a damn primary in CA, today!!!
So the legality or illegality of the substance made no difference; looks like a pro-libertarian argument to me.