In some categories, but overall Dem voters get more income. I think most wealthy donors skew Republican, which is rational. Why shouldn’t they vote for self-preservation? No one justifies to these wealthy donors that no one wants a handout.

People, regardless of their socioeconomic status, should be taxed appropriately for the resources they use. If your business is generating billions in revenue, and your net worth is multi mill+, you got a lot of benefit from the civilized order of society. That’s basically what your taxes are for. Well, that and human potential is worth investing in as that’s how we got so far here. It would be great to go further instead of boiling to death in some war torn, poverty stricken wasteland, but I digress.

Here’s some data on income by party, I can’t speak to the quality of the source: https://www.thehivelaw.com/blog/average-income-republican-vs-democrat-by-political-party/