@tsuyukihime
Though I will ignore Godwin's Law for the sake of discourse, I feel that considering mental health is an important part of justice, especially when we are considering the ability to tell right from wrong. I never claimed I was against any form of institutionalization, as I do think keeping him separated from society in the short term would be a good idea, what I am opposed to is deprive him of the rights he is entitled to because he is someone most people would consider immoral. From my understanding, he has shown more of an egocentric behavior and the inability to empathize, and thus an incapability to understand right from wrong, and so I would be uncomfortable with making that assumption, especially because many injustices against mentally ill people are caused by ignorance of how such instances can impair behavior or prevent proper integration into society. I don't think he should just be thrown into a prison jail and left to rot, but I think a judge mandating he attend therapy or live in a center for people in emotional or psychological distress, then he will probably be more likely to recover and make amends. (Which is the direction I hope the author takes)
For me personally, rape is not something that I easily can forgive by lieu of mental illness, so again whether or not he is incapable of preventing himself from raping people due to mental illness is irrelevant to me, if he has raped then he faces the consequences.
Honestly, it depends on the mental illness, because some mental illnesses may even be so bad that they impair one's ability to even consent. For instance, if someone with Down's Syndrome or a severe form of mental retardation that impair one's mental facilities to such an extent that they can not know better, or if someone undergoes a psychotic episode outside of one's control, I don't think that it would be fair to them to persecute them on the same level as you would someone who is cognizant of their actions. I do think those examples are extreme, and that the interaction in this chapter would not fall into those categories, but you understand the general principle I am laying out.
Even putting aside any "cathartic sense of justice" that you might feel I am coming from, I don't see how you can see it any other way if you are being impartial and fair to every member of society.
I think that's too much of a dichotomy. If we can be more fair and impartial, we should. It's not as simplistic as "fair" or "unfair" and "impartial" or "partial," and I think these terms have their grey areas.
As for these "incel" takes-a characterization I'd disagree with but is besides my point-I'd say for every single comment of those you'll get a handful that are asking for him to be killed or to get the shit beaten out of him. Hell, I'd say I've seen more comments shit on the "incel" comments then the ones you're referring to directly. It's definitely more likely that it's just a fringe group of weirdos and trolls more than anything else.