Why has the idea of the "traditional family" social scientists better understand black families in america?

It’s identification as a specific historical phenomenon that has rarely applied to black families helps us better understand the unique characteristics in a less judgmental way

Ghana, first of the great medieval trading empires of western africa (fl. 7th–13th century). it was situated between the sahara and the headwaters of the sénégal and niger rivers, in an area that now comprises southeastern mauritania and part of mali.

Yes thats true but what is the question