Very good points. I think both parties over the years have used the strategies once saved only for Blacks on each other. The Southern Strategy works so well on Whites that political strategists in both parties began using the same derogatory strategies to attack White wealthy candidates in addition to using it to attack/vilify Blacks. The classism that was once saved just for us Blacks has evolved to pitting Whites against each other.
It’s a different problem, but a problem created by greedy politicians…primarily Republicans. White politicians know how to appeal to Whiteness, regardless of party affiliation.