Her closing paragraphs below are very good but read the whole article. It is quite an education.
Merely walking down the aisle can't explain these differences. Rather, the institution of marriage appears to promote ideals of stability, order and fidelity that benefit children and adults alike. Those who pin their hopes for black progress on education tend to forget this. Numerous studies, when controlled for income and race, show that, on average, children growing up with single mothers are less likely to graduate from high school and go to college. And Moynihan's discovery of a negligible relationship between "economic conditions and social conditions" suggests that even increases in black male employment are not a certain cure.
Through the power of his own example, Obama presents a chance to revive what Lyndon Johnson called "the next and the more profound stage of the battle for civil rights." Obama's memoir, "Dreams From My Father," conveys the economic, emotional and existential toll of growing up fatherless, and he has spoken movingly of his determination to ensure for his own children a different life. Yet tackling this issue won't be easy. When Obama gave a Father's Day speech lamenting "fathers . . . missing from too many lives and too many homes," Jesse Jackson was so incensed that he said he wanted to castrate Obama. Still, painful as the subject is, the alternative is far worse: racial inequality as far as the eye can see.