I've been thinking about this article since it was posted and I can't decide how I feel about it. I don't disagree with his perceptions so much as his explanation of them. He isn't setting these things down objectively as "cultural clashes," but rather as thinly veiled criticisms. I wouldn't go to a foreign country and come back and say, wow, that foreign culture is so rude and dirty. How can any culture be worse than another? (which I feel is what he's trying to say, without actually saying it)
But then again, I'm trying to keep an open mind to what he is saying (even though it doesn't match most of my own observations), because, hey, I'm an American and I've never travelled outside of my country. If he doesn't want to be a part of this culture, more power to hi, but I happen to like it here well enough.