There is no race. Does the average European know if he is Germanic, Celtic, Latin, Greek, Viking, Phoenecian, Israelite, Slavic, etc? No. Does the average American know if he is English, German, Skandinavian, Dutch, Slavic, or Italian etc? Barely. Does the average Latin American care if he is white, black, Indian or a mixture of any two or all three? No. In a millenium, 99.9% of the world will have both a little black and white ancestry and the world will be better for it because there won't be "racial tension". Don't forget, some Jews are black and, relative to nonJewish blacks, they assimiilate very well.