I suspect the message of the Alt Right upsets a lot of people because it invokes what terror management theorists in psychology call “mortality salience,” namely, reminders of vulnerability, failure and death. Look up terror management theory and see the experimental support it has — fascinating stuff.
Specifically, people have finally started to wake up from the make-believe world of the Radical Enlightenment in the 18th Century. This sweeping social experiment — based on pseudoscience about equality, democracy, feminism, human fungibility, the mind as a blank slate, cosmopolitanism, borderlessness, mass immigration, miscegenation and trying to erase the biological distinctions between men and women — has come crashing down around us because it conflicts with man’s nature. “Social progress” can never happen because human nature doesn’t change; and “social justice” remains forever beyond reach because society’s losers, misfits, kooks, weaklings, defectives, scolds, utopians and degenerates have conflicting grievances that they can’t reconcile, especially when it comes to dividing up the shrinking pile of spoils produced by generations of white people’s labor.
In other words, the Alt Right has rediscovered and articulated for our generation the essential tragedy of the human condition. It has become the voice of wisdom and maturity in a world full of delusions that we can no longer sustain. I have my doubts as to whether Donald Trump has really stumbled across this perspective, much less that he knows what to do with it. But thanks to the inadvertent attention he has drawn to the Alt Right, American politics in the 2020’s could look radically different from the nonsense that has damaged the United States for the past few generations.