This is Conservative 101: take everything the other guys are saying that hurts you and turn it around. Sure, claiming that Democrats are the party of racism against Whites and POC makes absolutely zero sense, but they literally all seem to take it as gospel. Even for people who are too smart to fall for it, the constant back and forth blunts the attack. Which leads to...
Conservative 102: When everything goes shit, they benefit. To win, liberals have to actually win. Conservatives can either win or just blow everything up. When more people hate the system, liberals turn away in higher numbers. "American Carnage" anyone? Debt ceiling and government shutdowns, soaring debt they are mostly responsible for, corruption? You'd think that being bad at government would hurt them, but in general chaos and dysfunction are a net win for the right.