After buying Vol 7, I think an heavy but subtle theme within JJK is utilitarianism (the act of benefiting as many people as possible) and how conflicting it really is on our cast, and I think it hit its peak during the conversation between Yaga and Gakuganji.
To some extent, I do not think Gakuganji hates Yuji. But I believe he is scared of the possibility that Yuji’s body holds, and the threat of Sukuna. That ideology is what leads him to believe Yuji must be executed, to enact preventable deaths from happening.
Yaga immediately responds with the good Yuji as done, but what strikes me more is the flashback of Geto, almost as if he feels like he’s been in a situation like this before. Like he could’ve prevented what happened to him, and changed him before he lost himself.
Looking at Yuta, to me it seems like the question is always being asked: “Could you kill one to save many?” Yuta and Yuji didn’t ask for the circumstances they were in, but they’re forced into positions where they’re very existence is a danger, life is simply unfair to them.
This unfairness is exactly what causes Megumi to break his cog, saving someone who, from Gakuganji’s utilitarian standpoint, is a mass threat to everyone. But because Yuji had never deserved this, I feel Megumi feels he owes it to Yuji to give him fairness in saving him.
Ultimately, in Yaga’s words, the decision to save Yuji’s life is uncertain. But the choice to at least give Yuji the life he deserves, and allow whatever mistakes to come as they come is something I think was severely overlooked in this series.
With Shibuya ending, and Sukuna’s massacre of the city block, it’s almost frightening if they can still uphold this stance and support Yuji, especially if the higher ups get wind of it.