Board Thread:Naruto Discussions/@comment-46973520-20200924153856/@comment-32685487-20200924173806

Kaguya before she even ate the chakra fruit had the power to mortally wound Isshiki, who needed to act like a parasite and eat off of Jigen in order to survive and live. Kaguya REQUIRED being sealed away by SP:CT because she can't be killed. Momoshiki even with Kinshiki absorbed never stood a chance at killing her.