Ezra Klein lays out what's going on really well. The Republicans have introduced a "budget cutting" plan that raises the deficit, not lowers it, hate the very parts of the Affordable Care Act that install cost controls in our health care spending, and they are largely responsible for the current deficit. That's just the plain truth.
I'm going to add another, one that for me clarifies this debate more than anything else: the Republicans are not trying to balance the budget. They're trying to secure more money for the rich. That's it.
I've come to believe that Bill Clinton's most hard-fought achievement, balancing the budget, was in fact a total failure of vision because the goal itself plays into the Republican party's long term strategy. Republicans care only about converting government revenue into lower taxes for rich people, so any serious tackling of the deficit will only last until the next Republican government, ultimately resulting in just another round of Bush tax cuts.