Interesting, but relatively disappointing. Kevin Williamson's thoughts on the state of America and the possible future are much more analytical than prescriptive or predictive; that is, his explanation of what politics really is about is much substantive and deep than the ideas he offers on what the future American society, economy and governmental structures will be like after--as he obviously accepts as a given--the American economy and government collapse after going broke.
The book very obviously speaks from a naturalistic perspective throughout. That is, its analyses and prescriptions for the future operate from the implicit assumption that our world is all there is (or, perhaps, all that Williamson is interested in) and our world has as much of a future as we give it. Since I don't believe this at all, I found the book interesting but hardly inspiring or emotionally resonant (which was already hard enough considering that, as I said, Williamson actually spends relatively little time discussing what the title of the book suggests).