I'm slightly familiar with your reference to the Ache population. If memory serves, they were some kind of hunter-gatherers. Low rates of rape among them are used to counter the socio-biological argument. I haven't read enough about it to understand its relative merit. But I'll say this. First off, male chimps are both aggressive and tend to rape female chimps:
https://www.livescience.com/48743-aggressive-chimps-reproduce-more.html
It could be that we evolved beyond it, but a few things are essentially not debatable. First, there is a biological propensity toward violence among homo sapiens (in addition to many other animals), particularly the males of the species. We know it is at least in part biological because there are several selection advantages to it. A propensity towards violence makes It is easier to over-power prey or fend off predators, and also, of course, to compete for access to female sexual favors. This and the fact that while the female protects the young, the male is off hunting for food. This explains why the male hormone seems to carry the propensity more so than the female ones. Second, we have the desire for sex, which is selected for because, well, those who really like sex are obviously more likely to reproduce. Males have a quicker arousal response. We go from 0 to 60 in no time, while females have a more gradual arousal pattern. Males are quick to arouse, and quick to become aggressive.
The convergence of these traits makes it highly implausible to me that rape is entirely a product of social conditioning. Strong sexual arousal + aggression = rape. And not just rape, but aggressive and violent behavior in general.
Don't get me wrong. Socialization i.e. "nurture" affects these things as well. It pretty much affects everything. It's just that leftist academia in the social sciences shifted too far in the nurture direction from what had previously been an all nature direction, to the point of ignoring where the science was pointing, which is that it's a mix.
I'll read an article or two on the Ache to see if it changes my mind on any of this.