First, his proposed tax plan will dramatically increase income inequality in this country. It will be a windfall for elites—particularly the richest 0.1%, America’s corporate executives and Wall Street financiers—who already have rewritten the rules of the economic game to favor them. Meanwhile, it will punish millions of low-income and single-parent families by stripping away some of their tax deductions. (Ironically, the white working class that broke decisively for Trump has been increasingly falling into this latter camp.)
The modern economy privileges the well-educated and highly-skilled, while giving them an excuse to denigrate the people at the bottom (both white and nonwhite) as lazy, untalented, uneducated, and unsophisticated. In a society focused on meritocratic, materialistic success, many well-off Americans from across the political spectrum scorn the white working class in particular for holding onto religious superstitions and politically incorrect views, and pity them for working lousy jobs at dollar stores and fast-food restaurants that the better-off rarely set foot in. And when other sources of meaning are hard to come by, those who struggle in the modern economy can lose their sense of self-worth.
You can read more here. At the moment (before more Trump news pushes it off), it's on The Atlantic's front page.