The tasks assigned to men and women vary across culture and change over time. The naturalness of difference is ideological. The welfare state and a culture of poverty other cause has lead to a very high incidence of dysfunctional behavior in the African American family. Reality - Dysfunctional behavior is found among poorer African American families and can be explained by economic forces. Nonpoor African American families are rather conventional.
Poverty leads to dysfunctional behavior regardless of race.
Most families married young, had a gender division of labor, raised their own children, and did not divorce. Loss of that family type has led to the problems we now see in family. Reality - While idealized, most families never attained this ideal form. Even those that did had problems. Current family patterns reflect a continuation of long-term trends.