My God will cast them away, because they did not listen to him; And they will be wanderers among the nations.
The mystery of where they went still intrigues men, and the present-day Mormon church has received as doctrine that the Indians are the lost tribes of Israel.  However, it is a matter of total indifference.  All people, wherever they live, whatever was their former status, whoever they were, are all alike subjects of the gospel of Jesus Christ.  The new covenant of God is through Christ and through Christ only.  Racial status is not where the things of Christ are concerned.  Since the dawn of the times of the Messiah, "there is no distinction" between Jews and anyone else  (Romans 10:12).