Good War Revisionism

The Grey Lady's Adam Kirsch asks — Is World War II Still ‘the Good War?’ He answers yes; we'd answer no way in hell. "Nonhistorians with political agendas" as he libels them are singled out for particular abuse:

The novelist Nicholson Baker wrote a revisionist account of World War II, “Human Smoke: The Beginnings of World War II, the End of Civilization” (2008), in which Churchill comes across as rather more responsible for the war than Hitler. Meanwhile, Pat Buchanan wrote “Churchill, Hitler, and ‘The Unnecessary War’: How Britain Lost Its Empire and the West Lost the World” (2008), blaming Churchill for taking Britain to war against Germany in the first place. This isolationist lesson was directed, Buchanan explicitly said, at “the Churchill cult” that convinced Bush, “an untutored president,” that liberating Iraq from Saddam Hussein was akin to liberating Europe from Hitler.

The author concludes that "the awareness of ambiguity must not lead to detachment and paralysis — or to pacifism and isolationism, as Nicholson Baker and Pat Buchanan would have it." Why not?