I was considering writing something similar a while ago (note: I did not and in fact cannot read the article). I believe the denial of female intrasexual competition was part and parcel of feminism transitioning from a movement about equality to celebrating female ascendance — while simultaneously attempting to dodge all responsibility and accountability that should ride along with power. In this transition, all negative female qualities were minimized and/or denied. Anyone who did not play along was severely punished with cancellation and disapprobation.
Also, there was the attempt to claim that women and men are exactly the same in every way. And to believe that, of course, you have to deny a lot of obvious evidence. For sure, there is male intrasexual competition. But it truly pales in comparison to the female variant which is vicious, cruel and lifelong (males usually age out of this mostly in their late teens and early 20s).
Women, being so steeped in this intrasexual competition, often cannot believe that most men just do not really experience it and if they do, it’s minimal. But ladies, it’s true. In that way being a man is definitely better. All that toxicity is just not something we have to worry about.
(And 99.9999% of the “concern” about age gap relationships — especially when the woman is younger — is actually well-disguised female intrasexual competition manifesting.)