From my experience at least here in Oregon, the racial makeup of a city isn't always a good indicator of determining economic well-being. There are towns that are ~90% white and they can be very wealthy or very poor. Education levels, human capital, and local infrastructure are what really determine your economic fate.
And then you have the basket of deplorables. Mostly, I'd call them yuppies but most of them aren't that young now. A lot of them in banking and tech. (Steve Bannon, for instance, worked for Goldman Sachs.)
Yuppies? I must be missing something here. The "basket of deplorables" refers to working-class whites that hold politically incorrect views that cosmopolitans mercilessly mock. i.e., people that are far away from being yuppies. Think Archie Bunker from All in the Family.