While I do believe that if the worst happens.... economic stagnation via HUGE public debt and risk aversion, coupled with two or three foreign policy crisis' a great chasm of poverty could open.
However, I do NOT see any sort of indication that a cohesive revolution would take place. More like simple anarchy.... shoot your neighbor sort of stuff..... we have raised and been raised to be quite spoiled.... if thrown down to second or third tier status... our society might crack. It might. Just don't look for any organizational salvation to replace it..... that usually doesn't happen. Usually tyranny steps into the gap.
maybe...
out.