Have We Run Out of History and Legitimacy?

In the book The End of History and the Last Man, Francis Fukuyama spends quite a bit of time talking about the idea of legitimacy, in particular how the End of History represents a time when only liberal democracy has any reserves of legitimacy. But two questions occur, first where does a nation go if liberal democracy starts failing? And second does that failure happen, does it end up just like all previous systems, if it no longer provides reserves of legitimacy? Recent events seem to indicate that the answer to those two questions maybe no where, and yes. In other words liberal democracy is suffering a crisis of legitimacy and unfortunately, at this point, there's no where left to go.