Whether you are a Jew by "seed" does "not" determine how you "look" but by who your father is. Majority of African-Americans are pretty much Hebrews, I know fore sure though. But say for example the third guy from the left, he looks black but if he had a Caucasian "father" he would be Caucasian. As of "now" the Hebrews look very diverse due to the dispersion, but once God restores Israel in the 1000 year rule in which they will repopulate, all of Israel will most likely look brown to very dark brown. I "think" the 144,000 "men" God will save soon to escape the tribulation will be reserved to repopulate New Jerusalem. Of course God may be merciful and take some of those who are not men and not virgins, but in New Jerusalem it will be strictly Hebrew who will pro create. The Lord said nations will be maid servants towards Israel when New Jerusalem arrives, I don't think they will be able to re-produce. This part of the prophecy is till a little complex for me but I am understating more and more each day.