The facts are stunning and disturbing. This book is full of statistics that demonstrate the cultural divide that the country is struggling with.
The "blue" regions, in general, have geared up for a post-industrial economy, with cultural emphasis on advanced education and delayed marriage and childbearing until both parents are prepared emotionally and financially.
The "red" state regions, on the contrary, continue to promote foremost the unity and sanctity of sex, marriage, and childbearing, ironically resulting in more out-of-wedlock births rather than fewer, higher rates of divorce, less educational attainment, and lower income and employment.
The situation of the successful continues to improve (success breeds success), while the situation of the struggling only worsens. Politically, the red states have fought against the blue state legal norms (involving sex education, contraception for minors, abortion, etc.) with the authors positing that this conservatism only worsens the socio-economic status of those on the lower rungs of society.
While the facts are fascinating, the book itself is somewhat dry, laden as it is with so many statistical studies. But those studies are invaluable in pointing out the problem and what might be done to alleviate it.