"Chutzpah, according to the traditional definition, is when you murder your mother and father, then plead for mercy from the court on the grounds that you’re an orphan.Something like that is now happening in the tax debate."
http://krugman.blogs.nytimes.com/2011/05/07/federal-tax-chut...
Since 1962, and especially since 1982, the USA tax system has relentlessly reduced the taxes that the rich have to pay. The point is, if you change the tax system, so that all the money goes to the rich, then even with the lower taxes, the rich will end up paying a lot of what taxes are collected, because they have all the money. And that is basically what is happened. But now the rich like to claim "Hey, we are paying 70% of all the taxes!" But of course, their share of all wealth has expanded dramatically, so even with lower taxes, they still end up paying quite a bit.
But of course, all of these taxes are voluntary. They could voluntarily give up their wealth, and donate all of it to charity, and then they would be poor, and they would not have to pay taxes. That they choose not to do this suggests that they mind the taxes less than they would mind being poor.