I watched half of the video, and to be honest, I don't know much about this particular topic. However, I'm aware that politics significantly influences evolutionary biology. It's quite interesting, and I plan to learn more about it. 

 whoops i didnt know it was the same video I was posting... 

 mebe this can assist:

https://www.goodreads.com/book/show/6013398-erectus-walks-amongst-us 

 not an endorsement, its just quite data heavy so perhaps a good source...