From
The Soul of America, by Jon Meacham:
For many, the fact that we have arrived at a place in the life of the nation where a grand wizard of the KKK can claim, all too plausibly, that he is at one with the will of the president of the United States seems an unprecedented moment. History, however, shows us that we are frequently vulnerable to fear, bitterness, and strife. The good news is that we have come through such darkness before."
The bad news is that the same shit keeps happening, generation after generation. It's not Meacham's thesis, but like playing Russian roulette, eventually the bad shit is going to kill us.