No one needs to "prove" an obvious correlation. Why do people have such a hard time spotting root causes? The root cause here is obviously testosterone levels. There will be a precise correlation if anyone were to bother to check.
I'm guessing you are trolling, but this is a terrible take. Insert meme of Homer Simpson: "Everyone is stupid except for me"[1]
If you're interested on the subject, Robert Sapolsky has studied and written about Testosterone extensively. He has some videos up on Youtube as well as several books.
But I'll add another side-anecdote: High-T men are more sexually driven, making them care more about appearance of women. What is that appearance? Wide hips and large other things too. All of which are a signal of more vital and healthy child bearing. So not only do they want more sex, they choose women which are more fertile to begin with. Not exactly rocket science, to make the logical connection there, and predict the outcome.
The existence of an exception to a general rule doesn't disprove the rule. Most every "general rule" has notable exceptions that you can find if you look.
But until you demonstrate that girls outnumber boys in terms of violent tendencies, you'll have to accept my rule as true and your exception as...an exception.
If you look back at this discussion you'll notice we were in agreement the whole time (you and me anyway). lol. It's men with the Testosterone, and it's the Testosterone that causes aggressive behaviors as well.
The only people who are offended by these biological facts about Testosterone are the progressive far-left woke types. You know, the ones who invented the term "Toxic Masculinity" which was at one time taken seriously, but is now considered quite comical.
Sure an overabundance of that molecule leads to "issues" (roid rage, etc), but a normal amount of it is why we crossed the oceans to find a new land, fought to defend ourselves in wars, landed on the moon, and every other thing that people with little drive would never have done. So I don't consider "maleness" a flaw, and anyone who does has a mental disorder.
