All things are technically cultural, dude. American democracy isn't distinct from American culture - it
can't be, by its very nature. He's not implying that Iraqi culture is predisposed towards dictatorship, he's saying that the American invasion attempted to impose a rather American political process (not that democracy is
inherently western) on a different culture. I'd propose an "Iraqi-style democracy", but I don't know much about that part of the Middle East.
As an American, some of the discussions about Iraq just scare me. People talk about how we created a democracy there like it makes up for all the destruction we caused. Its like, hey, we launched an unprovoked attack on your country that killed hundreds of thousands of your people, but at least we imposed our superior culture on you, right? And then Michelle Bachman gets applause for saying this on a nationally televised debate.
My issue with the American invasion of Iraq is that while it very definitely removed a bad piece of work from power, it also resulted in a large amount of partisan violence (an inevitable result) and caused destabilization in the region that will last for quite a long time. Not getting into the motives behind the attack (whether they were noble, but misguided or downright villainous) that alone is a pretty big problem.