From the article:
That's what the war's about: our lack of civilizational confidence. As a famous Arnold Toynbee quote puts it: "Civilizations die from suicide, not murder"--as can be seen throughout much of "the Western world" right now. The progressive agenda--lavish social welfare, abortion, secularism, multiculturalism--is collectively the real suicide bomb.
The great Mark Steyn nails it here. A pretty all encompassing understanding of the current state of Western Civilization.