
Well Jin did prove to him Tehir true nature and his as well. Tehir isn't this great guy like Kimoto is imagining him to be. Tehir is selfish,manipulative,and a narcissist who suffers from superiority complex. It's proven by how much he looks down on Kimoto and is ungrateful towards Kimoto who spent his whole life curing him amd caring from him. Jin also prove Kimoto true nature as well. Kimoto pretends that he is different by acting like he is digusted with others. When in actuality he is just like them but in a different font. He is driven by instinct as well he wants to kill and destroy those he deemed stronger. He wants to breed and be breed. He enjoys the chaos & madness because it feels like freedom. Which is why he wasn't upset and was actually turned on from being rape. Because deep down he doesn't care that he was rape only that the act in itself made he feel good giving him the chance to lean into his primal instinct. He doesn't really care that Tehir got hurt and almost died but he is forcing himself to so that he can say he is different. Kimoto is judgemental,manipulative, possible psychopath who is a hypocrite. That also has the potential to become very powerful.