I think Jerry Coyne's dependence on opinion polling to come up with figures on that is rather blatantly superstitious. That kind of opinion polling is roughly the modern equivalent of reading a horoscope. I have no confidence that the actual percentage of a population who favors something like that, especially as an abstract instead idea instead of an actual fact can be discerned or that it would be a consistent number that you could depend on being the same day to day, never mind over the course of months or even years during which those phony numbers are cited. The volatility of the American and French electorates are certainly indicative of the unreliability of that stuff.
Update: I was referring to that meat-head Stephen Greenblatt's ridiculous and absurdly popular book, "The Swerve" which is a combination of long ago debunked "dark ages" mythology which was always motivated, not by historical accuracy but by anti-religious, much of it anti-Catholic polemics.
This review in not the NYT but in the LA one, by Jim Hinch is a critique of some of Greenblatt's blatant distortions and that of his fans, high placed and lower ones as well. Personally, I think Greenblatt was just cashing in on the anti-religion, atheism fad. You can always count on good reviews for bashing religion by idiots who never fact check or have the first idea of what they're talking about. Especially the kind who are on book juries and who spend their time writing reviews and doing interviews.
Rereading this update, OK, I admit it, I originally didn't use the word "meat". I changed three letters.