Harris does have some interesting 'blind spots' for lack of a better term. He has tendency to tiptoe around a direct confrontation wit hthe notion of evil, although he does recognize its consequenecs. In both Civilization and Its Enemies and The Next American Civil War, he substitutes the notion of prestige instead of the Nietzschean Will to Power. In fact, in Civilization and Its Enemies, me mentions Nietzsche and Sorel in the same paragraph without a mention of the Will to Power.
My contention - and the theme of the book I'm working on - is that the erosion of Judeo-Christian values and worldview over the last couple of hundred years created the vacuum that Nietzsche postulated would be filled with messianic types consumned by the Will to Power.