Most black do not and can not get white woman. This also only really applies to a small minority of blacks, mainly a small number of American blacks. Most their violence stay amongst themselves, most blacks kill only blacks overwhelmingly, plus since blacks are less technologically advanced they would not really venture out their territories keeping their stuff amongst themselves.
If blacks were left alone in Africa they would of stayed just like aboriginals very primitively. Unlike the expansionist races: Jews,whites, Asians and Arabs.
So all in all your point is insignificant. Interracial violence don’t make a dot on black violence. violence is towards themselves compared to every other race on this planet.