“The Book of Mormon itself … does not claim that the peoples it describes were either the predominant or the exclusive inhabitants of the lands they occupied. In fact, cultural and demographic clues in its text hint at the presence of other groups [like the Nephites and Mulekites] … .
“The 2006 update of the Introduction to the Book of Mormon reflects this understanding by stating that Book of Mormon peoples were ‘among the ancestors of the American Indians’” (“Book of Mormon and DNA Studies”).