As I post, to my right is an ad saying "immigrate the U.S.
I guess you know more than the ad people. Ultimately it's not the econ, it's the eroding top soil, CCD Colony Collapse Disorder, bird flue, terrorism, rising zombie population; etc. Good input TFN. These are the things that are the proverbial "nail in the coffin".
Oh yeah, and I'm not diminishing what your saying, just adding.