I absolutely agree that the Unsullied should never even exist and I don’t doubt for one minute that Jorah is probably advocating for this type of training to keep going (as you say, justifying evil by saying it’s necessary). But I can appreciate the ethical paradox that arises from the specific situation, because at this point in the story employing them on the one hand means reinforcing the abuse they have suffered (and have been forced to perpetrate during their training) and as an extension the system that put it in place, but on the other it could mean spreading less violence in the future (given that for these specific soldiers, what they have suffered in the past cannot be erased), which is what she says she wants to avoid. It’s an ethically loaded alternative (one that should never have existed in the first place), it’s like playing math with human lives, but that’s probably the point. We are probably supposed to keep interrogating ourselves on the moral implications of a choice, while the character in the story has to take it (I assume she is going to do the same as in the show, employ them but at least liberate them so they can choose whether to follow her or not?). I feel like it’s safe to say (at least for now) that she would never allow this training in the first place in order to strategically minimize uncontrolled brutality in the future (which is what Jorah would probably advise her to do), and that’s what makes her dilemma different from Jorah’s mindset. She wouldn’t put the system in place, but now that it has been done, she has to struggle with the notion that the “less violent solution” could be the one that reinforces it.