You can only govern as the party of Crazy for so long. When the base of the Republican Party goes from being seniors to being Insane White Men, then you know there is a transformation under way in American politics.
The danger we face is a complete and utter breakdown of governance. Once the crazies are thrown out of office, we will have to learn how to run the country without the participation of very rich and powerful white males. How that happens is difficult to predict. Will it happen quietly or with mercenary armies fighting one another? Who knows how nutty it will get?
Elites don't surrender power. It has to be separated from their cold, dead hands, or at least that's what history has always taught us.