I'm not going to hijack this thread but I sense the same undercurrent that you do. In my pre-retirement former life as a technology exec this was only a tendril of random firing neurons as recently as the early 1990's. Never heard it in Army but saw little facets in the riots of the 60's
Ruby Ridge and Waco and Oklahoma City, combined with serious attempts by hard core, dedicated groups and Congress to first eliminate everything except single shot and double barrel shotguns - later watered down in 1995 GCA got a LOT of campfire and country coffee shop discussions that I had never heard before.
The extreme hatred by the 'other groups' (whichever they may be, but similar to daily Kos and Moveon.org) against political beliefs that don't align with their own, the incredible rise of gang membership and violence, the situation in the inner cities in which the turf wars are increasing every day and are racially polarized.
External threats in the form of dedicated teams of killers, and citizen agents 'of change' are growing in my opinion, left and right. Obama's friend Bill Ayeres comes to mind as a potentially 'unreformed' type to think about as we look at associations.
We can take this somewhere else, but "I ain't dismissing your words, Son" and the observations and awareness of a storm brewing actually made our decision when we picked a pretty self sufficient ranch in way SW Oregon - where the family trees are pretty much a straight line. Texas is only place I would go back to - and NEVER in a city anywhere, anymore.
Am I convinced? No.
It's wierd but I heard about this too. And I'm not very politically active. Heard people were watching the Supreme Court and the way it voted on the Gun Law in DC. It caught me off guard. I knew there were (and are) plenty of people who are unhappy with the way the US is going. Both from a political lean and fiscal irresponsibility perspective.
Sorry to hijack the thread again but it seems there were parts of this country who were considering a different vote on the gun law as the last straw. Not to say civil war or anything like that. But not shiny, happy people either.