Dilemma for me here... I personally believe the world would be a better place without alcohol (that is to say, if it just didn't exist, and never existed in the first place.. it's so ingrained now that prohibition would cause all sorts of problems) but then... I also think the world would be a better place without organised religion.
I guess if I was to attend this demonstration, I'd just have to stand in the middle screaming "STOOOOOOOOOPPPPPP", aimlessly into the void.