[citation needed]
Just looking at any of the commonly cited reasons to prep (unrest, natural disasters) especially in developed countries and how they played out in the end, what you see is neighbors banding together, volunteers arriving from all over the country and random people donating large chunks of money.
I like to think of the preppers‘ cynical and pessimistic mindset as ultimate projection: Just because they would defend their food stash with a gun doesn‘t mean others wouldn‘t share their last can.