Tate no Yuusha, the protagonist would die if he did not rely on her slave, he treats her better than the norm in this world, and I seem to recall that, coming from modern Japan, he does not sit well with slavery at first. And that's usually the trope used in these settings.
The point is, those work, though fictional, are undoubtedly real in our collective mind, and how they are introduced and thereafter greated is of paramount importance.
Berserk is violent, and I have to admit that I love that work. And I had not truly thought about the issues it could raise before you pointed it out. I would say that having the most unnerving events unfold against monsters, or/and a different dimension would serve to soften the impact, however I am not objective enough for my word not to be biased. Guts being raped was shown to have traumatised him, I find that that to be a fitting treatment from the author, and the act is shown as something wrong.
In rapeman, it is all the contrary: rape is good, to be assigned like a therapy from a mother to get closer to her stepdaughter, what's more, when the victim seems to recognise her aggressor (a bloody teacher mind you, that's the most insufferable choice from the author in my opinion) she seems intrigued. INTRIGUED! She ought to be a bit more shaken up, I reckon.
Most of the works you pointed out DO NOT thoughtlessly treat with these issues, and, sure I like a whole lot of them, does that mean I am a hypocrite? Absolutely not. Does that mean you are? No, you demonstrated sound reasoning, and I applaud the depth of your thoughts.
But THIS, clearly crosses lines, mine, among them. It may be fiction, and I may have only read a single chapter, it may become better later on, but I am absolutely opposed to finding out.
I AM from Europe. Rape is a human issue, it destroys people's lives, and, as a human being first, I found the treatment of this issue, in this work, to be dangerously superficial, and an insult to us, as a species first, and as a community.
I did not take it personally, though you pointing fingers did not help out.
However I can relate with quite a few things you said, though I would disagree with most of them, I can tell that you are compelled by true reflection, and not by the urge to be a social media warrior, being a troll, or the anonymity of internet.
I, once again, applaud your wit, and am grateful for the time and the thought you laid out for me.
Godspeed my friend