r/K selection theory does not apply to human beings
r/K selection theory as an application for human behavior and even *racial* differences in behavior is wrong because Rushton didn’t properly understand ecological theory, nor did he understand evolution, nor did he understand anything involving r/K selection theory which means one can safely disregard what Rushton—or anyone like Molyneaux who doesn’t know about the theory—says about it.
Honestly, this is a classic case of someone over-extrapolating something in a high-school textbook and then proceed to misapply it haphazardly to something that they think sounds related. "Higher birth rates? Yep, that's r selection" *proceeds to ignore every other characteristic of r/K selection theory because they've got far enough to confirm their biases*. Definitely ignore that it's an equation that throws out more variables than you can count to focus only on the "dominant" ones under extreme conditions. Pretty much every *race* had similar birth rates until industrialization and birth control. Having few children is a modern luxury that has zero to do with race, and everything to do with circumstance, and a trivial inspection of history will tell you that near a dozen children were normal in pretty much every European country up until the 1800s. Hell it was a common convention in the roman empire to name your children numbers, like quintius, sextus, or decimus, because so many would die young. In fact, by the 1900s Europe had more than half the world's population.