"This gene causes this $complex_behavior" is practically modern phrenology. These types of studies are questionable and controversial. Not to mention unethical behaviors are often cultural constructs that in one culture is fine (being gay in the US) and another considered unethical (being gay in Russia.)

Not too long ago many scientists, including HN's beloved Nikola Tesla, were loudly advocating for further and deeper eugenics laws because "obviously" the negro or the Jew was a sub-human. We're still seeing some of this today with "genetics" replacing "characteristics."

"As sex differences in facial structure, generally, are at least partially due to increased testosterone concentrations in boys, testosterone likely plays a role in determining facial WHR, specifically, as well."

This is more academia-led "War on Boys." This kid has extra testosterone? He must be a rapist or a murderer. Shame the "rational scientific" crowd never seems to show skepticism at truly questionable research because it was published somewhere, so it must be true!