Of course there have been and will be attacks on this book done out of sheer 'political correctness' by those whose prejudices it rankles---but there have been similarly headless defences of it by those whose biases it pleasantly tickles. Some of these population geneticists might some be writing in fear of having their funding cut, but the better-known and -trusted the scientist, the lower the chance of it. some of them might in fact be depending on biassed [sic] summaries of the book, as Wade claims, but he uses this and the charge of political motivation as a way of dodging the actual issues raised. (In addition, a researcher might only read the sections of the book in which their [sic] work were cited and then weigh in fairly on the particular issues so involved.)
UNIX enhancements aren't.