Idk how I feel about this (although of course it's not my decision or life so I'm not judging him).
One on hand, he has a right to feel this way, but on the other, it's clear that this cover is not, and never was, intended to be sexual in any way, shape or form. I have always interpreted the cover as depicting how innocence is corrupted by capitalism and greed. I think Kurt would be devastated if he were alive and aware of this.
https://www.abc.net.au/news/2021-08-25/baby-from-nirvana-nevermind-album-cover-sues-band/100406408