DanielX, you make an excellent point. Unlike, say France or China, the United States isn't buildings, or land, or blood, but rather it's an idea. And because it's an idea, it does not know skin color, religion, ethnicity, or even language. We have borrowed all those things from others and made them our own. One can make the exact same arguments about Canada, of course (but not australia!) But the difference between us lies in our ideal: one claims to be a Cultural Mosaic (but is actually somewhere between a cultural mosaic and a melting pot) and the other claims to be a Melting Pot (but is actually somewhere between a cultural mosaic and a melting pot). Canada, ideologically, thus, runs a close second. But then there's that damned climate. USA wins out.