I used to live in Utah, I’ve read parts of the Book of Mormon, and I’ve always been baffled about how such a cockamamie story that is contradicted by all of the evidence could possibly be so popular. Facts don’t matter to a religion, of course, and the LDS Church has its own answer: it’s a conspiracy by scientists to attack their True Version of History.
Officially, the Mormon Church says that nothing in the Mormon scriptures is incompatible with DNA evidence, and that the genetic studies are being twisted to attack the church.
Uh, I think that whole business of Native Americans being descended from the lost tribe of Israel is pretty much blown away by the genetic evidence.