The challenge is more difficult because low-income African Americans today confront not only segregation but also the income stagnation and blocked mobility faced by all Americans in families with low or moderate incomes.

Some families evicted from the Flats settled in a segregated development, also created by the federal government, that later opened on the west side. But because public housing was intended not for poor but for lower-middle-class families, many of those displaced from the Flats had incomes that were insufficient to qualify. Instead, many had to double up with relatives or rent units created when other African American families subdivided their houses. A result of the government program, therefore, was the increased population density that turned the African American neighborhoods into slums.

Just like Supreme Court justices, we as a nation have avoided contemplating remedies because we’ve indulged in the comfortable delusion that our segregation has not resulted primarily from state action and so, we conclude, there is not much we are required to do about it. Because once entrenched, segregation is difficult to reverse, the easiest course is to ignore it.

At the time, the Federal Housing Administration and Veterans Administration not only refused to insure mortgages for African Americans in designated white neighborhoods like Ladera; they also would not insure mortgages for whites in a neighborhood where African Americans were present.

We have created a caste system in this country, with African Americans kept exploited and geographically separate by racially explicit government policies. Although most of these policies are now off the books, they have never been remedied and their effects endure.

The core argument of this book is that African Americans were unconstitutionally denied the means and the right to integration in middle-class neighborhoods, and because this denial was state-sponsored, the nation is obligated to remedy it.