Just like everything else, they lack the capacity to see the big picture. As soon as you throw out taxes on corporations and the rich they will just adjust. Perhaps whatever endeavors they are in are no longer worth the trouble so they are just closed down, the evil rich people as they see it take no hit, and all the people that were working in that endeavor do. It's not quite as simple as just taxing the rich.

That's also despite most of these uber rich just benefit from their investments and don't actually have all that much in their personal finances. Then we could talk about how much of the general wealth is in tax-deferred accounts. I could go on and on, it's way more complicated than "tax the rich" but that makes a catchphrase for them to prey on the poor and the stupid.

I would cut taxes and government services heavily. Then start adding regulation in some places while losing it in others. Economic policy would be pro-individual and anti-conglomerate. Where I see the American economy start to break down is when everything became so megacorp controlled. It's even in the mindset, so many people aspire to live in their box in a tower, pay exhorbitant amounts of rent, and bitch about everything. The real escape is in property ownership, skills, and craftsmanship, but that's too much work I guess.