I am completely making this up, but I do think once upon a time the basic story of "Americans want rich people to have their taxes cuts because they think they'll be rich one day" had...some truth to it. A little bit, anyway.
I don't think it does anymore. It's what happens when .1%ers get greedy and don't just screw the poors and the middle class but also the not-quite-rich-enough, too. It's tough to be merely a 10%er.