The disintegration of the family unit started with LBJs “Great Society” and was finished off by The Pill. Minorities this time were struck harder. Free and easy no committal sex sounded so great back then. But actions have consequences.
The destruction of the family is the goal of the left, and the one they are ultimately working for...
It started with Antonio Gramsci in the 1920s. It was imported to the US with the Frankfurt School of German Marxists in the 1930s, who later brought us a transformation in psychotherapy (Maslow), education (Marcuse), and feminism (Fromm).
The destruction of the American family was done deliberately, because it leaves the almighty state to raise the children, by default.
No, it started with an uptick in bastardy in black families in the 1940's. "Colored films" of the 30's through the early 50's, shot in parts of American cities inhabited by "colored" families, incidentally recorded intact families led by breadwinners and tended by full-time moms. Fast forward to the "blaxploitation" films of the 70's, and it's as if a bomb has gone off in Harlem and every other black neighborhood, killing 75% of the fathers and turning the rest of the male population into hustlers, criminals, and cops.
Sen. Pat Moynihan of New York tried to start a big discussion about this in 1966 but was shouted down by the "civil rights leadership" of his day.
The cause was the adoption by social agencies of an old Jewish family-aid formula, of direct payments to a needy, widowed mother. That formula worked in the tightly-knit Jewish community, which had a lot of social-role reinforcement, but it's been a disaster since it was extended to non-Jews who didn't have the social-services (and social-obligations) network that the Jewish community did. Fathers left their families in order to enable mothers to receive checks, and the rest is some very sad social history, which has spread from the black community to just about every other group and subgroup.
But if you're looking for the worm in the apple, direct subsidies was it.