Without reference to the same stats for white, Asian and other ethnicities, those stats don't really tell us much other than showing that a conservative thinks that the breakdown of the family unit is responsible for society's ills. If those stats aren't reflected in the white community in particular then there are further questions to be asked about why black children are more likely to be brought up by a single parent than white children, or why that has a disproportionate effect on black kids compared to white.