In People Like Us, noninsane conservative columnist David Brooks writes
Maybe somewhere in this country there is a truly diverse neighborhood in which a black Pentecostal minister lives next to a white anti-globalization activist, who lives next to an Asian short-order cook, who lives next to a professional golfer, who lives next to a postmodern-literature professor and a cardiovascular surgeon. But I have never been to or heard of that neighborhood. Instead, what I have seen all around the country is people making strenuous efforts to group themselves with people who are basically like themselves.
I recommend he come visit us in Oakland. He’s pretty much described the block I live on, give or take a few equivalents.