I do not agree with everything the HWA taught, but I do believe that many in the world today have lost their heritage. The lost 10 tribes of Israel are still in existence.
Gen 26:4 And I will make thy seed to multiply as the stars of heaven, and will give unto thy seed all these countries; and in thy seed shall all the nations of the earth be blessed;
Gen 26:5 Because that Abraham obeyed my voice, and kept my charge, my commandments, my statutes, and my laws.
The only other peoples this was promised to in the Holy Bible was the descendants of Ishmael. Just think about it for a moment. The Judean people do not even come close to fulfilling this prophecy and they are only one tribe of Israel. It should be obvious just who the other tribes of Israel are in the world.