What would Paul Ryan's plan achieve?

Paul Ryan unveiled what many considered an ambitious budget today. That is telling, as the former Republican Party nominee for vice president has consistently been downgrading the aggressiveness of his budget proposals:


His current plans do look impressive, but that's really because the numbers are already large and the axes on these graphs are linear:

But Ryan doesn't even begin to deal with social security which is expected to skyrocket as the American population ages. His plan will leave state spending at 19 per cent of GDP when the average from 1951 up until Obama has been 18 per cent. In this era of US politics both sides have decided that a big state is best.