Hardboiled Android
Vault Fossil
Most people turn to religion during tough times.
Again, what makes Mormonism so special we get a lesson on it?
Probably because it's practically specific to the American West (where all good Fallout games have been set) and has a decidedly "survivalist" bent specifically tailored in response to the possibility of nuclear war?
I mean, if you put a vault in Salt Lake City, you're going to have Mormons after the apocalypse. The ideology itself will probably survive the apocalypse since they've been planning for it, so it won't seem as much a challenge to that system of beliefs.
If you had a tribe of Jews or Muslims in a Fallout game, you'd have politically correct pussies bitching about the game spreading islamophobia or antisemitism at the slightest jab or attempt at humor.