Like clockwork, of course men and sexist "objectification" is responsible for women being way more critical of female nudity then men are.
https://www.psypost.org/2022/10/women-are-more-critical-of-female-toplessness-than-men-which-may-be-explained-by-objectification-theory-64093
There were also significant gender differences in ratings, with women rating the topless photos more negatively compared to men. This finding remained significant after controlling for various demographic and attitudinal variables.
“What really surprised us was the magnitude of the difference that we saw between the males and females in our study who rated the images; the differences based on participant sex were about 3-times larger than that for context and nearly twice as large as both context and legality combined,” Harbke explained. “This pattern was consistent the idea that women will sometimes criticize and police other women’s behavior as sexual objects, along with other predictions and extensions from objectification theory.”
In their study, Harbke and Lindemann discussed two potential interpretations for this sex difference, both of which can be explained by objectification theory.
The real reason which is painfully obvious to anyone who isnt deluded by woke nonsense is simply evolutionary mate competition:
https://www.youtube.com/watch?v=j9BQQYsMqIw
Women are the most critical of female promiscuity and nudity because it devalues sex, which evolutionary speaking is womens currency in the mating game. The access to sex is their bargening power. Just like men are most critical of guys "simping" and showering women with attention, time and resources for nothing in return, because it increases competition for men and essentially makes acquiring sex more expensive to men. Hence, women slut shame other women, men simp shame other men.