Most people don't believe that Mormon's actually believe this, but rest assured, they do indeed!
This also explains the blatant racism that is within Mormonism, yes, they are incredibly racist. Or at least, the Mormon Theology is incredibly racist. Humans of African descent were denied admittance into the priesthood up until I think the 80's because of this theology. They were allowed into the priesthood due to outside pressure from the government, so the Mormon's changed how outsiders viewed their theology, just like they did with Polygamy so that Utah would be granted statehood.
You don't believe me? Then Read up!
This was banned by the Mormon Church in the state of Utah from airing publically.
Mormon Origins Cartoon(part 3 or Mormonism exposed but since it's the best segment I have listed it first.)
Mormonism Exposed Part 1
Mormonism Exposed Part 1
Mormonism exposed Part 2
Mormonism Exposed Part 2
Some cool and at times creepy banned or faux children's programming
This program is in claymation and features our friend Satan.
Claymation Satan
A little conspiracy theory schoolhouse rock!
Schoolhouse Rock!!!