// It isn't, Ludwig, it is a huge factor. Men have around 100 x more than women (I will double check that) but are hugely more likely to commit violence, even with the same upbringing. //
Yes, it goes without saying that men commit more crime than women. You only have to look at the prison population to see that, but the difference between the sexes is somewhat of a red herring.
What I'm saying is that if you just look at a single sex, say men, the ones committing the violent crime are unlikely to be doing so simply because they inherited the 'violent gene' from their grandad. They're doing it for other reasons, one of which is likely to be that they're just not very nice people.