From a March survey of several countries, America stands out as expecially supportive of a diverse society:
I’m not a bit surprised: much of our unmatched greatness lies in our embrace of universal principles and cosmopolitan values, offering as they do a free & equal place for newcomers from the world over. (We are now and have been a great country; we don’t need to be made again what we already are.)
My forefathers came to this continent well before the Revolution, believing & knowing from their arrival onward that those later arriving from other parts of the world would only enrich the American experience, and make this country stronger.
Everywhere but Silicon Valley.
Yes, a good point. Here’s a CNN Money review of some federal data, and their own survey data, for 2006-2010 that supports your point: http://money.cnn.com/interactive/technology/tech-diversity-data/