While she has a point, the important thing to note is that the importance of the nuclear family and the reason it came about in the first place is that it is the most conducive type of family structure for accumulating and passing down wealth to further generations in a post industrial capitalistic society. If the black community doesn't have a nuclear family in the United States, then we will only end up lagging further behind and that's why there have been numerous campaigns done to tear up black family dynamics since the end of jim crow