If whiteness were of no particular advantage, then having a fuller color wheel of skin tones would be purely a matter of celebration. But whiteness - just a drop of it - does still carry privilege. You learn that very young in America.

Americanism is not a matter of skin or color.

I know many people on the left are suspicious of words like Americanization. To them, it can sound like a cover for white privilege and warmongering. It suggests arrogance and groupthink. But these connotations are not fixed. It is in our power to reshape them by recalling the best of America.

Identity in America is complicated but it's also simple: it's about whom you identify with and who identifies with you.

The Muslim world just doesn't believe that skin color is all that important. Obama may be half-black, but he's still all-Western, according to them. It doesn't matter whether you're black, white or green - if you're not a devotee of Muhammad, you don't matter.

Much of our national debate proceeds as if China and America were locked in a zero-sum game in which one's loss is precisely the other's gain.