Businesses made a killing, yes, short and mid term. Long term it’s looking bad, unless there’s change in that relationship. For workers it was a loss. Be they Democrats or Republicans, black or white.
Democrats up until the 80s were on the side of the workers, so these were traditionally democratic constituencies, but the Dems and Repubs earlier, sold them out to big business and the promise of globalization.
To call them rightists is short sighted. If these were Brazilians in Brazil or Mexicans in Mexico being sold out en masse, they too would have voted for someone who would take up their cause because the traditional parties had long ago abandoned them except for some pro forma pandering (we like unions, we stand behind unions, etc.)
Right now only likes of Trump and Sanders have the desire to actually do things for them, albeit perhaps very differently.