Talk:Ken Kaneki/@comment-26974774-20151119114853/@comment-10733658-20151119192905

But you're apparently ignoring Human Nature, and again thinking in terms of absolutes that simply don't hold up to a little bit of critical thinking and knowledge of Psychology.

The central issue is quite simple: Ghouls kill and eat humans to survive.

Human Nature is such that we tend to respond aggressively to anything that threatens us. The conflict between humans and Ghouls has this partially at its root, but we also have indications of groups like V and the Washuus manipulating things along.

I mean, seriously consider for a moment -- sure, many Investigators have been shown questioning things. But to categorize things as "They think and feel like us so killing them is bad" is simplistic thinking that ignores the reality that humans in the Tokyo Ghoul universe, and Ghoul Investigators in particular, face. Ghouls are predators that kill and consume humans, as their natural food source.

Think about it this way: War is a very real and unfortunate reality. Soldiers know damn well that their opponents are human just like them, but kill them anyway. The reason is because if they hesitate, they or one of their comrades could die. When dealing with particularly violent groups, you also have to consider the dangers of civilians being killed if you show an enemy mercy.

Remember during the Mask Operation? The Quinx actually discuss this very problem, wondering about whether the Ghouls they could have eliminated have killed since then. This is what motivates the majority of Investigators we've encountered, not the sadism of types like Mado and Kijima. They are thinking about saving human lives by killing a being that -- even if they are equally capable of thought and emotion -- will almost certainly kill people. Taishi Fura discusses this with Shirazu, talking about how even while accepting that their job requires them to take lives....failure to act means more death.

Again, I point out the fact that most of the backstories we know involve people becoming Investigators because of personal loss. Because they know what Ghouls do to people, and want to prevent it. Like the soldier on the battlefield, they have to weigh the choice between living with having killed another or the possibility that their mercy will result in even more death.