Talk about a plot twist in the middle of a chapter. This textbook starts with a perfectly reasonable explanation of speciation and genetic drift, then suddenly decides Darwin was on a 150-year losing streak.
It's like watching a documentary about space exploration that ends with "and that's why the moon is made of cheese." The scientific whiplash is so severe I think I need a neck brace.
Somewhere, in a parallel universe, there's a religious text that begins with "In the beginning, God created the heavens and earth" and ends with "through random mutation and natural selection."