My favorite example of their three-card-monte logic goes like this: first, they insist that the Social Security system's current surplus and the trust fund it has been accumulating with that surplus are meaningless. Social Security, they say, isn't really an independent entity - it's just part of the federal government.
If the trust fund is meaningless, by the way, that Greenspan-sponsored tax increase in the 1980's was nothing but an exercise in class warfare: taxes on working-class Americans went up, taxes on the affluent went down, and the workers have nothing to show for their sacrifice.
But never mind: the same people who claim that Social Security isn't an independent entity when it runs surpluses also insist that late next decade, when the benefit payments start to exceed the payroll tax receipts, this will represent a crisis - you see, Social Security has its own dedicated financing, and therefore must stand on its own.
There's no honest way anyone can hold both these positions, but very little about the privatizers' position is honest. They come to bury Social Security, not to save it. They aren't sincerely concerned about the possibility that the system will someday fail; they're disturbed by the system's historic success.