One of the peculiarities of modern American culture that strikes me as I read US based discussion boards is the sheer pervasiveness of what can only be described as bizzare fears of some coming catastrophe or other.
There is a history of that, of course, and sometimes the politics that have arisen out of it are nasty to say the least. The anti-communism that pervaded US foreign policy from the end WWII still exists, even after the disintegration of the USSR, although it is slowly being replaced by the "Islamic menace". But these kind of fears, irrational as they may be, have received plenty of attention. What I'm interested in are the truly "off-the planet" ones.
These range from the "UN plan for world Government based on Proposition 21", to the "Obama wants to take away our guns and then put us all in concentration camps", through to "the coming Global economic meltdown" and, ultimately "the end days and the return of Jesus".
The last of these is possibly the easiest to explain. Its not just a product of religious fundamentalism but, amongst some people at least, its a heartfelt desire. Without mentioning any names (although part of hers involves fabric) its something to look forward to with glee. And that glee isn't a matter of looking forward to eternity in a heaven of perpetual bliss, its a time of retribution, when "disbelievers" (and particularly those that have mocked her) will meet their just "rewards", while she looks down from on high, secretly revelling in their pain and misery.
I actually think that gives us a clue to the ultimate reason for the apparent paranoia of many groups: they WANT it to happen.
Every now and then I watch a show called "Preppers". Its about people preparing for "the end of civilisation". While their reasons for believing in that possibility sometimes have a semi-rational basis, in many cases the "possibilities" are in the range of getting hit on the head by a meteorite. And the reasons they give for "preparing" for such an eventuality, and often spending huge amounts of time, energy and money in the process, are always the same

"its to protect my family".
That is a reasonable enough aim, but it rings hollow. In many cases its clear that the families involved are either just going along with it because its easier, have been bullied into compliance, or even openly resent the whole project. That doesn't matter because the "prepper" (usually a man in his early forties) is just doing it "for their own good".
But I think its a kind of fantasy. They want it to happen so they can be the staunch tough guy fighting off the hoard of rampaging mobs, the heroic protector and defender who outsmarts (and gets to kill) those who would take away the things they value.
Maybe its a long shot, but I think there's as sense in which that attitude has pervaded US Foreign Policy.
Or is it that I'm trying to draw out far too much from such examples?