In US society, wealth is power. When there is a great disparity in wealth, there is an equally great disparity in power. It's that power disparity that is a serious problem, not the wealth as such.
But again: why is it bad if white people are in power? What’s wrong with white people?
I didn't take the line as meaning what you're taking it as meaning. I took it as as a recognition of the makeup of the traditional power structure. It did seem a bit on the pandering side, though.