"I support gay marriage, gun control laws, decriminalizing marijuana, abortion, and all kinds of other libertarian and leftist agendas."
You can either be a libertarian or a leftist, not both, you can't be hyper focused on individual liberty within the limited rule of law while also wanting a nanny state to wipe your fanny every trip to the bathroom.
Gun control is a leftist, not a libertarian thing as well. Notice how far left governments always take away everyone's guns? It keeps the peasants from getting uppity when the party or dear leader decides something is best and a few million get to visit the gulag. Also look at the UK, Illinois, and Washington D.C., strict gun control has only increased crime as criminals who already don't obey the law have free reign over an unarmed populace. That isn't to say that there shouldn't be required safety classes, background checks to verify you aren't a convicted nutcase, required training for both concealed and open carry handguns, no heavy weapons (12.7mm isn't for hunting rabbits), and no full auto. By the way our neighbor Vermont has virtually no restrictions on firearms and has the 49nth lowest rate of crime per capita. /bet you didn't know that
Libertarians would allow gay marriage, encourage those couples to have a secured closet full of firearms, permit them to grow hash like tomatoes, although preferably not permit the smoking of that crop while handling the firearms, and allow them to have abortions should they somehow become impregnated from some rather foolish immoral unprotected experimenting with the neighbors.
And now for something completely different:
http://www.g4tv.com/thepile/videos/34590/Barack_Obama_and_Sarah_Palin_in_Mercenaries_2.html