We laugh at preppers because they not all there emotionally or mentally. They're pretty much batshit insane.
Most people just stockpile water, food, equipment, and medicine.
Anybody taking it farther than that is just being dumb and is probably not mentally stable.
Especially the ones who collect guns and ammo and keep ranting about the end of the world.
They'll probably be the cause of it.
Don't give them any ideas...