For example when I talk to my 80 year old grandmother about what it was like growing up 20 miles outside of a major American metro, she speaks about canning, maintaining a very large pantry, community agriculture, raising animals, making their own clothing, hunting deer and preserving the meat long term, making their own bullets, etc.
My suspicion is that what you're observing in rural america is merely a continuation of the ordinary way of life that has always existed here. What I suspect is that over decades PR firms and major brands have executed a rebranding of the old ways, attempting to recast it as 'paranoia culture' or some form of political radicalism. Their campaign likely involves emphasizing the small paranoid faction of this much larger culture on their TV shows and pop media.
I hope that doesn't sound like a conspiracy theory, because that's not at all what I mean, it's just an effective marketing technique. After all families who are oriented towards saving for a rainy day don't come into the grocery stores to buy the expensive pre-packaged foodstuffs which drive all the margins. Therefor in order to increase shareholder value you have to find ways to break down the traditional values (and way of life) so that it can be replaced with predictable consumer behaviors and 'brand loyalty'.
My point is that the reason why you don't see this in europe isn't because the behaviors are different but merely because the advertising techniques are different in America so the lexicon is different.
All of this is starting to change though. A new culture is forming thanks the Internet, and people are starting to care again, about issues like community agriculture. You can start to see it being recognized (in satire) even on the major TV networks. Their airwaves are starting to be jammed by our Internet meme culture, and as a consequence people are beginning to care, again.
https://www.youtube.com/watch?v=BIWQE4ZpMWI
YES IT'S LOCAL GODDAMNIT