When a man gets sexually objectified, it’s a black swan. If I were walking down the street and some woman yelled “Hey, hottie!” at me, I’d be amused, perhaps feel complimented. It would be an fun story to tell.
If that happened to me every day of my life, and was often a prelude to more aggressive unwanted advances, I would feel very differently.
I think this is a case where “treating everyone the same” is in fact unfair, because an interaction that would be a novelty to the majority of men would be a potential fight-or-flight trigger for many women.
It is arguable that posting pictures of scantily clad attractive women sends a message that sexual objectification of women is OK, and reinforces the perception that women should only be valued for their looks. But it’s not the same for men, because the idea that men should only be valued for their looks isn’t a widespread problem in society.