What's the difference between haters anyway? That's so silly.
Rapists treat and speak of women as some kind of lower class citizens. That's the racist narrative as well. If you think that rapists are not prejudiced against women, you obviously don't understand what prejudice is.
With the implications most pertinent to this thread being: (1) that the specific motives for rape (which I generalize here to sexual assault) are indistinguishable, and (2) that studying their differences is irrelevant.
I know you stepped out of the conversation. I'm quoting your post because it links to a valuable article.
Do the motivations for sex crimes matter?
On the one hand, I agree that there's no "excuse" for committing sexual assault. If I were to say that I was sexually assaulted and someone were to respond by defending the assailant's motives, I would be disgusted with the person talking to me. The reactive thought would probably cross my mind, "I hope you get raped, you disgusting enabler," and I would view that person as being as repulsive, almost, as the assailant herself/himself.
On the other hand, if no one were to "excuse" the assailant/s, and if someone were to speak to me in ways that indulged my anger and self-pity, then I would respond by thinking of counter-arguments. I would speculate on what might have led to the attitudes and choices of the assailant/s. I would also categorize assailants, assigning some higher levels of contempt and some lower. One reason I would think this way would not be pity for the less-contemptible, but a desire to assign the worst a level "lower than low".
Aside from using consideration of motives to determine whether to hate one assailant more than another, there are also practical reasons to want to know the motives and their differences. If someone was raised in a crazy environment where abuse was normal, it might be possible to correct the person's thinking through exposure to other ideas, for example. If someone is indeed motivated by hate, as can happen, the information about what led to the actions can be useful in preventing the same path from being taken by another person experiencing a similar situation.
In a way, the reasons don't matter: "I don't care what your reasons are; what you did was wrong, and there's no excuse. I've had bad experiences too, but I haven't made the choices you've made." However, another reason to want to know about assailants' pasts and motivations is: What separates me from them now, and will it continue? Can I rely on fate to keep me from becoming destructive to others and myself? Or do I need to know more about the mechanisms of corruption so that I don't find myself retaliating against society?