Why is salon bothered by Pinker? Lots of professors follow ideology rather than logic, specially in the softer majors. Listen to philosophers, and they loosely tie things together from time to time.
Maybe this book of Pinker's is full of it, but why take exception to Pinker when there are many more out there?
It seems pathetically personal, for no good reason [by that I mean it attacks some flourishes and liberties, but not the substance]