You're conflating nurturing and protection with birthing and nursing.
I also don't understand why this opinion is so controversial. Humans, including men are one of the rare species that nurture and protect babies (consciously and beyond symbiosis) of other individuals or even species, including wild animals. Why is it so surprising then that men are good at nurturing their own babies?
I also don't understand why this opinion is so controversial. Humans, including men are one of the rare species that nurture and protect babies (consciously and beyond symbiosis) of other individuals or even species, including wild animals. Why is it so surprising then that men are good at nurturing their own babies?