I've always been curious how they explain away the genetic evidence that North American natives are not descended from "the lost 10 tribes of Israel".
One explanation I've read: Mormons believe that Israelites travelled to America, but they don't believe that the whole population of the Americas came from the Israelites. Only a very small proportion. Most native Americans descend from people from Asia who crossed the Bering Strait thousands of years ago. The relatively small numbers of Israelites who joined the may have (conveniently) left little or no trace in the current gene pool.
Apologists have got an "answer" for everything. Especially Mormon apologists.