I think the hint goes wayyyyyy back...
Yeah...
In other words, in Kishi's views on women are simple.
They only care about boys and not studying, they are selfish and annoying, they only fall for the elite cool guys, they don't have a chivalrous spirit, and they only sole purpose is to make babies...
Yeah, that is why I am glad that this whole manga is going downhill...it's ethics were so messed up.