This is sort of the incredible thing: white Americans really think America sucks right now, but financial data shows us white Americans have never had it better! The resentment is social! Lots of us don't want nonwhite Americans to have it better!
Historians of this era will spend a lot of time studying social resentment, especially in older folks, and how it's played such a central role in politics.
I feel this every time I talk to my father or my in-laws. They have had an amazing life and were far richer and more comfortable than their parents ever were. But they long for a time when everyone was poorer but hierarchies were steeper and more rigid. It's both infuriating and pathetic.
