Most people in general are against age gap relationships, even between consenting adults. But AGR where the man is the older partner received even harshest criticism.
When an older woman is in relation with a younger man, all she can get is some irony and stupid comments about her being a cougar and hot and chasing "young meat".
When the man is the older partner, he is immediately labelled as a predator and a manipulator into grooming. It is mentioned that woman's brain is not totally mature before 25 (that's weird, Greta Thunberg is mature enough to scream against world leaders, but a 25 yo woman can be easily manipulated by the first older man? How bizarre). It doesn't matter the guy is honest and kind. it doesn't matter him and the woman really love each other. He is a disgusting predator and he definitely shouldn't spouse a much younger woman.

Because if some men are abusers, all men are abusers. The neverending story.