One of the things that I love about TRP is that you can see parallels of its principles in the animal kingdom. This gives support to the notion that differences between men and women are innate and not simply societal. For example, in a pride of lions, female lions will share and exclusively mate with the alpha male lion. This observation would be consistent with the female hypergamy we see today.

However, the dominant male lion absolutely does and will cockblock other adult males from approaching his females, chasing them away and even going so far as to kill them.

This seems to run counter to the human experience where cockblocking is considered to be poor form, and a sign of insecurity of a beta male, rather than being an alpha trait.

When did this change happen? Did early humans cockblock each other? Or is it a recent development?

This also got me thinking: are there any other alpha traits that cannot be reconciled with an evolutionary biology hypothesis and are purely modern developments?

Maybe, like the alpha trait of not giving a fuck about what others think of you. I'm not sure how well that would have worked out for a man in the medieval period, where you could have been burned at the stake for being a heretic.