Why does Lawrence O’Donnell hate black sociologists?

Ann Coulter:

…Erol Ricketts, a (black) demographer and sociologist with the Rockefeller Foundation (…)researched the origin of black female-headed families in the 1980s. His studies showed that the black family was thriving from the late 19th century through most of the 20th century.

You don’t get much poorer, deprived or discriminated against than being a black person in America just a generation out of slavery.

Examining nearly a century of U.S. census reports, Ricketts found that between 1890 and 1950, blacks had higher marriage rates than whites. Until 1970, black women were more likely to get married than white women — and that was despite the high mortality rates among black men, leaving fewer available for marriage. In three of four decennial years between 1890 and 1920, black men out-married white men.