Your life is dull, or unpleasant, or sheer agony, but you're unable or unwilling to change it, so you fantasize the end of the world so you can live a life of adventure, without responsibilities or have-tos. Its usually a life where you can kill the people you don't like because 1) you won't be punished for it, and 2) they deserve it anyway.

Fundies, gun-collecting Cons, all those who can't make it in society, wish someone or somebody or something will remove all the constraints so their true virtues of independence, self-reliance and toughness can shine, without any bosses or govvies or low-lifes getting in the way, playing all the angles and using every technicality to overcome what really matters in this world: simplicity, guts, strength and will.

Most people know they aren't scientists, or athletes, or artists. But every man jack among us really believes he knows how to coach a football team, or run a business, or get the Russians to leave the Ukraine. Those who don't are just cowards and fools. They know this instinctively, just like they know they're better lovers and better drivers than most everybody else.

After the Apocalypse, they'll do all right, because no one will be telling them what to do. No one will be politically correct any more. Ever again. Never.

Check out Norman Spinrad's "The Iron Dream" and see what happens when one of these folks gets lucky.