
As much as I agree with you on that, you can't expect EVERYONE to be some kind of sage or monk and be chanting "peace" after a bad experience.
When people get hurt, they will find ways to express their emotion - healthy or not.
BUT, if you have forgotten, THIS GUYS HAVE BEEN ABUSED [PHYSICALLY AND SEXUALLY] SINCE HE WAS A CHILD
how could you POSSIBLY expect abused people, or anyone who has experience some kind of trauma, to FOLLOW THE SAME STANDARDS AS THOSE WHO HAVE NEVER FELT the pain tHEy have??? IT'S LITERALLY LIKE ASKING A VETERAN TO NOT REACT TO FIREWORKS AFTER COMING BACK FROM A WAR WHERE HE GOT PTSD FROM!!!!! their brains have been altered to react differently SO YOU CANNOT EXPECT THEM TO HAVE THE SAME THINKING AS OTHER PEOPLE [to a large extent]
There are some mangas where the authors use rape pathetically, but here, it makes MORE SENSE, [save the uke, the "beautiful" part was really strange]
Plus, i read somewhere here that if sexual abuse is done at a young enough age, that abuse becomes a coping mechanism for the victim, and they are more likely to go on to do the same to others.
The same way a lot of pedophiles were often victims as children

Well, you want the opinion from someone who has been abused physically and sexually?
Here i give you, he's a little shit. The last thing i want to do to someone who has been in my place and crying for help is rape them. All you can think is how to make justification for the Seme. But how about the uke? Now not only he get abused physically he also abused sexually. The same thing as the seme. So instead of being the better person, he just create another version of him. If I would do that and everyone would sympathize with me and defend me, damn, I don't need to worry about prison.
But whatever. We know the direction where this kind of story will go. We can already guess the end. So no need to debate about it.

As sorry as I am that you had to go through such experiences, everyone's "reaction" to a situation is different. I've been physically abused too, and I too hate seeing people be so cruel to each other, but that doesn't mean that others who went through the same thing would feel the same. In fact, abuse can, and often does, lead to a cycle. My parents were also abused by their parents, but that didn't stop them from hurting me and my brother.
All I'm saying is that if you're gonna give the seme shit, then at least do so with the right arguments [for a lack of a better word]. Plus, the uke's beautiful thing does surprise me [excluding the fact that that's an overused trope in these kinds of mangas], but seeing him turn out to be non-aggressive to the world after/during his experience, doesn't mean that that is the only way an abused person can turn out.
Repeat after me Fudou:
Just because someone hurt you badly doesn't mean you should inflict the same or even more pain to another person, especially someone who went through the same thing as you, you little shit.
And Makoto ma boi. WTF you mean by missing something?? The only contact you have with Vodoo guy is when he rapes you. No shit you say you missed that? The only kindness he did to you was when he fed you food when you were starving, that's common sense. I'd do that to you too.
Well, what can i say? I'm Hooked!! So, gonna keep reading lol.