I'm not going to expand on all the myths Republicans tell regarding taxes, because Jon Perr's excellent diary goes into far more detail than I ever could. If it wasn't already obvious to you now, cutting taxes for the rich does nothing to improve employment, increase the inflation-adjusted middle class and poor families, nor decrease the staggering income disparity between the rich and the non-rich. The Top 1% are paying less in taxes now than at any time before World War II and the total amount of revenue generated from taxes is at its lowest amount since 1950, yet Mitt Romney and his Republican brethren would have you believe that the only cure to both a failing economy and a ridiculously high national debt is to cut taxes.
The right wing of our country has an unshakable belief that cutting taxes will lower unemployment and increase the amount of income the average American takes home, yet has no proof whatsoever to back up that claim. They have complete faith in an unfettered, unregulated Free Market, yet such a Free Market was volatile and corrupt enough to plunge the world into a Great Depression. The greatest prosperity that America has ever enjoyed corresponds almost exactly with the highest tax rates for the wealthy, and corporate investment is almost completely blind to the raising or lowering of taxes on capital gains.
Where is the proof that tax cuts for the wealthy do little more than allow for said wealthy to keep more of their cash? Is it a test of faith? Maybe it's the same thing as God creating the world in 6000 years yet cramming the ground with dinosaur bones. Because when confronted with the facts about tax cuts, Republicans seem to cling to their beliefs even harder. Like Stephen Colbert famously said, "Facts have a left-wing bias."
Approximately 25% of people in this country believe angels are real, about 20% of school children were unable to find Canada on a map, and not too long ago more than 20% of this nation were not sure that President Obama was born within our borders (although I would hope that number has gone down since the Birther movement has evaporated). You can't fight faith, really, but you can fight ignorance in the hope that people (eventually) change their minds. Tax cuts always sound good, but like donuts they are loaded with empty calories and don't really solve any of the problems we need to fix. As time goes on more and more of us will stop praying to Saint Reagan and see the world for how it really is.