I mean, if men would have to carry the baby for nearly 10 months within their own body and after giving birth having to do all the care work like lots of women had and have to do, they would be baby killers more often as well.
My head cannon says this behavior is approximated by step-parents being shitty to their step kids so that their own kids get preferential treatment. But I have no proof, just life experiences.
Dumb mother quokka.
Quokkas look like an unused Disney character.
Seriously. Just look at that face!
me and the wife saw a documentary on capybaras, and one of the mother's kids got eaten by a crocodile. The capybara gave 0 fucks.
Edit : we even joke about "Caiman ate ma baybee!"
The mother infamous for that was eventually cleared and dingos did likely actually eat her baby. https://en.m.wikipedia.org/wiki/Dingo_ate_my_baby
Boomer in a nutshell
Mom can make more babies. Existing babies would not survive without mom anyway. Seems pretty reasonable to me from an evolutionary point of view.
Relevant Natural History Short
Why how very wholesome ❤️
And when it comes to humans: "Almost all neonaticides are committed by mothers." - https://pmc.ncbi.nlm.nih.gov/articles/PMC2174580/
I mean, if men would have to carry the baby for nearly 10 months within their own body and after giving birth having to do all the care work like lots of women had and have to do, they would be baby killers more often as well.
My head cannon says this behavior is approximated by step-parents being shitty to their step kids so that their own kids get preferential treatment. But I have no proof, just life experiences.
Oh boy do I have bad news for you:
Filicide overwhelmingly linked to male perpetrators who 'deeply believe their actions are justified', experts say
Filicide
It is not exactly the situation you mentioned, but I think it is at least highly related?