In the introduction, Heather relates a story of advising Obama's economic advisors. They're talking about scaling back the size of the government, of stimulus, of initiatives designed to grow the economy. Because "now is not the time."
She points out that after WWII massive government spending was undertaken to create the middle class, bring people out of poverty, and revitalize the war-shaken economy. It worked. The economy roared for forty years.
For white people.
People of color were largely shut out of the programs for white citizens: VA home loans. College discounts. Etc.
She points out, to these advisors, that the demographics of the country are changing, have changed. Now that the "middle class" that would be helped by economic stimulus is Black and Latino instead of white, suddenly "it's not the time."
Yet the result would be exactly the same.
Startling insight.