Why because college kids are there? Even if there was, (which I highly doubt) why do you care? It does not represent anything. There is a crap ton of Kentucky bourbon in the limos of your guys you adore. Or is it the Cocaine crack heads of the democratic party that wets your whistle? Who are you, a purist priest or something?
Whatever happened to that quaint question, "name your poison?"
I don't see that it makes any difference to one's political philosophy whether they want to party with weed or with booze. Libertarians revere the Constitution. I should think a good, rock-ribbed, conservative Republican would agree with that position.