A problem for most theories of a “Fall” is that they imagine an idealized reality prior to that event. I’m having a hard time imagining when that would have been in this case.
Whatever you think of Trump, he does represent a return to the most traditional of American values.
And there’s another way of looking at those stages of corruption: There is no need for virtue when the way is being followed. It is only when things start to come apart that we can demonstrate our virtue. And when virtue is thwarted we can at least practice kindness.