To repeat myself
At the moment our national wealth and income is the highest it has ever been (as it also was late in 2016).
But since approximately 1981, that wealth and income has continued to flow to the upper 1%, actually mostly .01%.
Faced with that appearing unseemly, it was necessary to direct popular unease against immigrants, minorities and other outgroups. That's the oldest trick in the book.
Many, many not quite wealthy folks in the top few percent who do right well (by our standards) toiling for the interests of the corporate blob- either from within or as DC or political operatives.
But even some Good Folks like pore coal miners who toil away for one of the coal corporations that will siphon off the cash and go bankrupt in order to break labor contracts, evade exposure to black lung liability, etc.