The Bible states that Israel and Judah will not be gathered to Israel again until Yashua (Jesus) returns. They are currently under the curses of Deuteronomy ch 28. The curses are to last forever. If you pay close attention to the curses there is only one peoples on the face of the earth who fulfils all of the curses throughout their history, not only in the west but also at the hands of Ishmael and the Hamites. Wherever they go and wherever they are today they will still be under the curses. You can identify these people by these curses. Deut 28:45 Moreover all these curses shall come upon thee, and shall pursue thee, and overtake thee, till thou be destroyed; because thou hearkenedst not unto the voice of the Lord thy God, to keep his commandments and his statutes which he commanded thee. Is it the Negroes aka African Americans?
No. There is no reason to believe or even to suspect that African Americans comprise the dispersed people of Israel. It is made very clear in the books of 2 Kings and 2 Chronicles that the punishments that came on Israel and Judah were a fulfilment of many predictions, the most detailed of which is probably Deuteronomy 28 as you have indicated. However the curses were not to last forever, but only until Israel repents and turns to God. From the parallel prophecy:
Leviticus 26:40-45 “But if they confess their iniquity and the iniquity of their fathers in their treachery that they committed against me, and also in walking contrary to me, (41) so that I walked contrary to them and brought them into the land of their enemies–if then their uncircumcised heart is humbled and they make amends for their iniquity, (42) then I will remember my covenant with Jacob, and I will remember my covenant with Isaac and my covenant with Abraham, and I will remember the land. (43) But the land shall be abandoned by them and enjoy its Sabbaths while it lies desolate without them, and they shall make amends for their iniquity, because they spurned my rules and their soul abhorred my statutes. (44) Yet for all that, when they are in the land of their enemies, I will not spurn them, neither will I abhor them so as to destroy them utterly and break my covenant with them, for I am the LORD their God. (45) But I will for their sake remember the covenant with their forefathers, whom I brought out of the land of Egypt in the sight of the nations, that I might be their God: I am the LORD.”
This promise, although conditional, will come to pass. Why do we know? Because Scripture has clearly stated that Israel will repent. For example:
Jeremiah 30:17-20 For I will restore health to you, and your wounds I will heal, declares the LORD, because they have called you an outcast: ‘It is Zion, for whom no one cares!’ (18) “Thus says the LORD: Behold, I will restore the fortunes of the tents of Jacob and have compassion on his dwellings; the city shall be rebuilt on its mound, and the palace shall stand where it used to be. (19) Out of them shall come songs of thanksgiving, and the voices of those who celebrate. I will multiply them, and they shall not be few; I will make them honored, and they shall not be small. (20) Their children shall be as they were of old, and their congregation shall be established before me, and I will punish all who oppress them.
The apostle Paul repeats the same ideas in Romans 11.
Underlying the question it seems to me is a faulty way of approaching Scripture. If we dream up some speculative idea that matches our perceptions about a group of people, and then seek, by very imaginative techniques to “support” those dreamed up ideas, then that is not the correct way to read God’s word. We should listen to what God is saying, and not try to impose our preconception. This question highlights an extreme example of how this approach can lead to bizarre results, and should be a warning to each of us not to indulge in the same faults with our own pet ideas. Evidence should lead to conclusions. We should not start with the answers and then look for reasons to support our own prejudices.