Atheists and religious people have one thing in common: They both like to laugh at other beliefs. Among the most maligned “faiths” (and deservedly so) are those of Scientology and Mormonism. An entertaining YouTube video: Cartoon Banned by the Mormon Church explains some of the latter’s beliefs. I’m not sure about the origin of the cartoon, but it must have required some significant funding. Clearly, it’s meant to disparage the religion. More information is available in the Mormon entry in Wikipedia.
Regardless of what the viewer believes, it’s clear that most of these “teachings” are just plain ludicrous. Still, people adhere to them (by the thousands or by the millions). Clearly, there’s a fine line between religion and insanity.