Because the Israel lobby is one of the most powerful in American politics. If we speak ill of Israeli policy or transgressions, then we are labeled anti-Semitic. What Israel is doing to the Palestinians is considered by many international organizations to be nothing short of genocide.
Sales taxes are considered regressive taxes because the disproportionately affect the poor and lower classes of society. Lower classes spend a much higher percentage of their income (in fact, almost all of it) than middle and upper classes, and are therefore are subjected to a greater percentage...