Yes to all of this, but this part especially literally makes no sense whatsoever. It doesn't add up mathematically or genetically. It's non-adaptive in an evolutionary sense. And yet, a lot of guys feel fine passing this little tidbit along as if it were an actual fact. What I generally tell them is to go look out the window, go to a mall, or a baseball game - the evidence of just how not true this is will stare them in the face, as you noted.