I see it as too many have drifted too far from God. Yes, they could really repent, but I don't see it happening in the churches. There are a few people serving God but I suspect it is effectively a smaller group than the 10 for whom God would have spared Sodom and Gomorrah. I don't of course mean smaller in actual numbers. How long can judgement be held back from the unrighteous people by righteousness? Too many simply don't care and/or don't believe God would do it. They think America is special somehow above everyone else. This is so of too many who claim to be Christian.Do you see judgement coming on America as a whole? We've gotten pretty close to Sodom and Gomorrah.
'Truth, justice and the American way' is as per Superman, NOT as per God.