Trump, Cruz and Rubio tax plans are indecent proposals
US Republican presidential candidate Donald Trump (R) is greeted on stage by fellow Republican candidate Ted Cruz before speaking at a rally against the Iran nuclear deal in Washington, DC on September 9, 2015 (AFP Photo/Nicholas Kamm)

While we are all amused by the vulgar pie fight that is the Republican presidential field, it's easy to overlook the taxonomy of pain their candidates would impose on the American electorate. The three leading candidates from the party of fiscal responsibility have all proposed tax plans with the same components: enormous tax breaks for those…