You are correct.
I'll just leave this here: http://www.anonymousconservative.com/blog/the-theory/rk-selection-theory/
I've seen that bandied about, but never read it before.
I don't know if they explain it in the book, but it doesn't seem to fit well with human immigrant populations in the West. Were 17th-20th century immigrants to America, and their descendants, more r than their K cousins, back in the Old Country? They had an embarrassment of resources here. If it wasn't easier to make a living here, than there, they wouldn't have come. Were the Natives more r, living in a huge, fertile continent, with a relatively low population?
I suppose others have asked that question before, so I assume there's a good answer.
Also, some rabbit trail led me to this, which seemed related. Or not. The author looks to be one of those pick-up artist stooges, but he had some interesting observations in this article.
https://heartiste.wordpress.com/2013/02/07/leftoid-egocentrism/The old saw that liberals love humanity but hate humans while conservatives hate humanity but love humans is proven accurate over and over, each time I am in the one or the other’s company.
I'm not proud to admit it, but I lost my childhood appreciation for humans some time ago. I'm definitely more of a humanity-lover than a human-lover these days. Still don't want to force them to solve all their problems my way, though. Maybe I don't love humanity, either.