Well, Maha stuff is not as clear as day as people would love it to portray. The whole point of the Shibuya Incident was to seal Gojo so Sukuna can come out to no opponent basically.
Kenjaku fears Gojo as all hell while he makes deals with Sukuna, same Sukuna who killed those two girls for giving him fingers and asking to help them with their master's body.
So Sukuna can betray Kenjaku any time, which means Kenjaku must believe that he can stop Sukuna when he betrays him. He fears Gojo so he needed to seal him.
Also for the Limitless + Six Eyes user argument. Gojo is the peak of Jujutsu Sorcery and also peak of Limitless + Six Eyes users.
Gojo said that next person to be born with both is stronger than the previous one and it was like that for hundreds of years.
Kenjaku fears Gojo as all hell while he makes deals with Sukuna, same Sukuna who killed those two girls for giving him fingers and asking to help them with their master's body.
So Sukuna can betray Kenjaku any time, which means Kenjaku must believe that he can stop Sukuna when he betrays him. He fears Gojo so he needed to seal him.
Also for the Limitless + Six Eyes user argument. Gojo is the peak of Jujutsu Sorcery and also peak of Limitless + Six Eyes users.
Gojo said that next person to be born with both is stronger than the previous one and it was like that for hundreds of years.
Ken just wanted Sukuna for dealing with Gojo
![](https://cdn.onepiecechapters.com/file/CDN-M-A-N/kaisentcb_93_04.jpg)
Sukuna is just here for Gojo he doesnt have any buisness with him so after Gojo was sealed they throw away Sukuna
Sukuna is peak JJ which he showed us by defeating an opponent no 10 shadow user or limitless user did while only having 15 fingers it wasnt even full power Sukuna
Gojo is sure he can beat Sukuna but Sukuna is also sure he can kill Gojo once gets control of Yuji
Sukuna is just a different league Gojo has limitless as CT
Sukuna has his slice and even more we didnt even see all of his arsenal
Sukuna is peak strength in the end they will prob need all of them to beat him