Nothing new under the sun. As enticing an idea as innate moral superiority is, humankind is still the same animal it always was, and evolution looks to be taking its sweet time at creating a more enlightened adaptation.
As the posts above, and the thousands like them across the history of the forum prove, there is nothing at all uniquely American about exceptionalism.
All around the world, people have had the opportunity to build their fortunes on the misfortune of others, and rarely have they passed it up.
Roman Empire, Han, Ottoman, Persian, Spanish, British, French, American, et al.
All built on the unshakeable conviction that being smart enough to choose what country you were born in, makes you an entitled and superior being to the 'slavs', the 'wogs', the 'keffir', the 'darkies'....
A condition that is proclaimed with evangelical fervor everytime one these threads comes up.
Instead of having honest discussions about the root causes of human social problems, and discourse on solutions, it rarely gets past page 2 before the nationalistic pooh-flinging starts, followed quickly by the Stormfront factoid parrots, and not much beyond that before the JREF moderators start editing out 'uncivil' (read 'uppity) facts from the history of the race.