Yes. Finally, a real argument. 

I agree. And liberty, to me, means that adults have the right to distribute and partake in whatever they please as long as it doesn't harm others or impede the liberty of others. Believing in the nanny state where the government heavily regulates what is "bad for you" you get the war on drugs. We treat drug abusers who are people suffering from addiction like criminals and put incentive into the hands of criminals to distribute. I'd rather have the sick people out in the open and remove the incentive of criminals. When it comes to harsher substances like heroin or meth those shouldn't become legal but we shouldn't treat it's victims as criminals, just it's perpetuators. Sweden has some interesting things its trying in this regard. 

Bottom line is that I'm interested in seeing the problems we wish to solve solved. I don't think prohibition is the answer. If we can live with guns we can live with cannabis. Guns also need regulation, but not prohibition.