Well everyone enjoys it in their own way, it's not like the author didn't make Himeyuki into a yandere pervert in his own twisted way, so don't get so heated up, you don't know if the OP isn't a minor too, and it's an shounen ai so they won't show anything explicit anyway, this story pretty much fetishize abuse, yet you still enjoy it ╮( ̄▽ ̄)╭
I get that it's too graphic, but still. It is weird to ask THIS kind of question right after a chapter that criticizes this kind of behavior. Like, the character just got harassed and all you can think about is who will top who? I don't think you got what I said like, at all, nor what this manga seems to be at least trying to talk about.
No I get what you mean, but I don't think calling someone disgusting proves your point. It's not really graphic in my opinion. I think the problem is rather that all of those plot point aren't really about criticizing the behavior of the characters, they are just used for shock value, I would even say it's kind of a caricature of the real problems it's mirroring. Not even one chapter was a respectful toward those kind of situations, that's why I don't take it so seriously. I get why are you consider dropping this, but if you are interested in much more mature depiction of SA and the trauma it brings, without being disrespectfully graphic I can recommend you reading
-Zankoku Na Kami Ga Shihai Suru
Or
-Berserk
But only if you are at least 20+ because it's really heavy in psychological way, and not really suitable for teens.

May I ask who's the top ?