Nationalism. All day, every day. Priding yourself over something some other guys did years and years ago, and probably was reconstructed to your forefather's ego's liking, and you had nothing to do with it.
You might argue that it brings people together and people shouldn't be blamed for priding themselves over who they "are". Fact is, you were just born within a limited area constructed with borders, made by the same kind of guys you love to hate, sitting in some office, drawing lines on a map.
In the end, it mostly makes us think we're different from each other, based on cultural events/dishes/flags/religions, made from material that was already there, created by nature, constructed into something else out of human curiousity, something living in us all, not in "you people" or "them people ovar there", it's the result of chance and hard work. Your food? Nature made that, you just "discovered" it, due to your surroundings, with the spices and the-
.......err.....rain and cold winds are so annoying.......NYANYANDESUCHAN ^_^;