For nearly two hundred years what made the United States unique was a sense of morality, dignity, and civility.
Americans actually had a sense of right and wrong based on certitudes (not theoretical right and wrong).
Life wasn't confusing either because everyone understood the rules. Then along came the 1960s and the Rousseau crowd, preaching the religion of relativism. Nothing, they insisted, is certain; everything is relative.
Then, to make matters worse, the government got involved in education - in order to take the monumental step of ridding us of those nasty old certitudes. In just a few decades, I believe America, the moral leader of the world, succeeded in trashing its certitudes. Certitude after certitude has been shouted out of existence by "progressive thinkers" and where it stops, nobody knows (I am pretty sure I do).
But one thing is certain: Violence is a natural offspring of an anything-goes society. Violence is the darkest side of humanity and the United States is now steeped in violence.
Once all certitudes have vanished and violence is totally out of control, I believe a nation becomes a dictatorship waiting to happen. The iron fist of totalitarianism is threatening to come to a nation that is very near you. Guess where.