Yeah, I suspect this is right. Far be it from me to give right-wing preppers too much benefit of the doubt (that maybe there is some logic to their illogic), but I suspect their fantasy is just to survive until all their neighbors are dead of earthquake or chemical weapon attack or political unrest or the biblical tribulation or whatever. Once all their neighbors are dead, they can take their stuff. Land, more canned and shelf-stable goods, first aid supplies, etc.