Just to recap your argument:
> We enforce the rules in our society because we can afford to. In the Antarctic winter where resources are incredibly scarce and the people are trapped for months a time, their local society can’t afford to have such strict standards. The animal within each of us comes out in Antarctica more than anywhere else. This is of course part of what makes living there so exciting on an elemental level.
And your point brought home:
> Because in those conditions it’s not wrong, it’s adaptive.
You have to be a pretty ignorant person to think "I don't have many resources, so sexual harassment and violence is not only normal, it's a good idea".
Other human societies around the world live in conditions close to those at McMurdo, and they do not have this problem. But amazingly, McMurdo is better equipped with more supplies, with the same seasonal inaccessibility as those other societies. So your argument is factually incorrect. Limited resources and an extreme environment does not implicitly result in a culture of sexual harassment and violence.
Nor it is "adaptive" in any advantageous way. It is much more likely a result of psychological breakdown, combined with a lack of social consequence, and a position of power over trainees who do not anticipate this treatment. Basically, psychos who can't deal with stress and take it out on the most vulnerable to make themselves feel better. In no way does this reflect human society, nor normal human behavior, as even in hunter-gatherer societies, people work together and prevent abuse.
You also have to be pretty morally bankrupt to suggest that this condition of abusing other humans for fun is totally fine. I don't think you would hold this position if you were the one receiving the treatment.