In the pioneer West Whitopias, immigration tended to be the dominant social and racial issue. In Forsyth County, Georgia, immigration is still an issue, but because you have that complicated history of the Trail of Tears and slavery and Jim Crow, the Whitopia has a different flavor.

People would say, "You know, Rich, it's nature. Birds of a feather flock together." I have to point out to them that, no, that's not the case.

With growing and intermixed minority populations, our democracy can not work optimally unless all people are integrated as full and equal members, and I think our collective freedom requires that.

The reason our country looks the way it does is through social engineering that distinctly benefits suburban communities, exurban communities, and often white residents. And we are socially engineered in such a way as to, often unconsciously and unintentionally, but sometimes intentionally, perpetuate this divisive inequality.

Louisville, Colorado, which was just voted by CNN and Money magazine as the best place to live, is a veritable Whitopia that is unaffected by the housing crisis and even the severe recession. You look at the best places to live, according to Money's 2009 list, and 9 of the 10 are Whitopias.

There is tremendous long-term harm when Americans accept ethnic and class balkanization as a de facto fixture of American life. I think that impoverishes our understanding of each other.

Problem with segregation isn't that people can't live in peaceful harmony singing "Kumbaya" - although that wouldn't be bad. The problem is that many of these Whitopian communities are taking state, local, and federal resources with them.