I found some of this stuff interesting, maybe I will debate it with them sometime?
http://www.exmormon.org/tract2.htm
2200 BC immigrants settled the uninhabited Americas, fought many wars, the survivors were degenerate unbelievers the ancestors of the American Indians, after his crucifixion Jesus Christ came to America, why is there no trace of their civilization they say lasted for a thousand years covering both North and South America, why no mention of the many civilizations which really did exist at that time in the Americas, the garden of Eden was in Missouri, all humanity before the Great Flood lived in the western hemisphere, dark skin is a curse from God...