What in the hell does race have to do with the desire to marry? Are you really that ignorant or did you simply forget the /sarc tag?
Of course I was being sarcastic, but not by much. With a 70% illegitimacy birthrate among blacks, they have a very serious problem, and one that could wipe out the vast majority of slave-descended black Americans in just a few generations.
African immigrants do not have this problem, in that they are firm believers in marriage. They can also see the cultural nightmare among s-d blacks, so want nothing to do with them.