KIRK: I have to take him back inside myself. I can't survive without him. I don't want him back. He's like an animal, a thoughtless, brutal animal, and yet it's me. Me.
MCCOY: Jim, you're no different than anyone else. We all have our darker side. We need it! It's half of what we are. It's not really ugly, it's human.
KIRK: Human.
MCCOY: Yes, human. A lot of what he is makes you the man you are. God forbid I should have to agree with Spock, but he was right. Without the negative side, you wouldn't be the Captain. You couldn't be, and you know it. Your strength of command lies mostly in him.
I'm not sure that does enough to pull it away from "Kirk's secret rape fantasy" but I can see what they were trying to do there. That would be a much harder sell today.