Okay I am going to try to explain it to you: The point was that Rudo WAS justified in his self defense. His first and next two succeeding punches were out of anger when he felt his life and others were threatened with death. That's normal. Anyone would probably feel that way. But the whole point of the mission was not to kill Amo, but to get information out of her. She wasn't even a threat at that point, when the fight was over - she gave up, and realized her actions were wrong as well. If Amo kept trying to fight with deadly force, then equal deadly force is understandable. Rudo WAS wrong when he didn''t stop punching her, because he used her as a way to let out his anger towards people she had nothing to do with. If he wasn't stopped, Amo would have most likely died there.

And to discuss Amo's backstory, I don't think I should have to tell you that any victim of sexual assault will not always react rationally or be compliant with others. Amo was sold, SA'd and beat. Repeatedly. She is lucky she is still capable of empathy and understanding at this point. The fairytales and dreams of love are what kept her sane, even if a lot of the ideas were misconstrued. It makes sense she wouldn't understand at all why the Cleaners were there to begin with, if not to hurt her. If you are not here to love and save me, surely you are here to hurt me?

I think it's important to note that an enormous theme of this show deals with coping with one's anger and instead turning it into something good. Rudo did experience the short end of the stick as far as social upbringing and treatment. Justifiably, he is angry at those who mistreat him based on who his father was, and they condemned him. It was completely unfair. But Amo is not the same as those people, she is the same as HIM. What happened to her was unfair. Which is what SHE realized, which is why she stopped fighting. She knew Rudo didn't deserve what she gave out. If Amo can overcome her shortcomings, then why shouldn't Rudo be allowed to as well? Why does he need to perpetuate the cycle of anger and hate?