So although I've lived in both Pittsburgh and Boston for a total of 16 years now, including grad school where I was very social, I haven't had much of a chance to have African American friends because I've met almost no African Americans.
So does "average" exclude major (maybe East Coast) U.S. cities? Should I look at cities of smaller scale... say Oxnard, CA? Which criteria should one consider when deciding a city is "normally" segregated? Just want to know how things are different in the average American city with a significant number of ethnic minorities.
It is in part do to the fact that whites comprise a much larger portion of the population (70+%) in most areas, but also they don't necessarily (need to) express themselves as "white" as their defining social trait, so they may choose something else as the major one.