The inevitable result of a half-century and more of publik-skewl ejicashun.
America -- a great idea, didn't last.
As far as it not lasting, who knows. When God's people turn from their wicked ways and repent and turn back to God things change. Out of the big messes that we create, He can create even bigger miracles. I think it's going to take a good hard spanking for that to happen though. And it could get a lot uglier, but, out of the ashes, just watch and see the hand of God move.