1. GOP (mostly white) resists raising the minimum wage, which is currently below the poverty line.
2. They propose corporate welfare where companies get a subsidy instead of raising the minimum wage.  Instead of company money going to pay lower wage earners, the business uses the subsidy to pay them, leaving company funds to go to few high wager earners, increasing inequality.
3. They want to turn welfare funds over to the states in block grants, but as many as 24 states have a record of refusing to administer programs (ACA).  So GOP can hide behind the states to not deliver the welfare while claiming its available.
4. They've suggested "moving vouchers" for the poor.  Highest unemployement is in urban areas, lowest in agricultural (and mostly white) area.  Inner city folks don't have a lot of farming skills, nor want to live in racist rural America.
5. End child labor law.  Kids work, no school. No advancement. Poorer.

Yeah big champions of the lower classes.