What you are seeing is the result of epigenetic changes due to exposure to androgen disruptors. Plasticizers, heavy metals, etc.
We haven’t even begun to see the effects of the current exposure levels. Ancient Rome had nothing on where we’re gonna go...
Yes, I meant to mention those factors, too.
With all of the birth control hormones and psychotropic drugs people are peeing into our environment, we are looking to be monsters in less than a couple of generations.