The only thing stopping men from having a proper bond with their kids which is as strong as a Mother's, is society
Well no thats not quite true, is it.
There's a very basic biological instinctive bond between & baby and their biological mother, which begins when they are in the womb. Its the pulse of your mothers heart from the inside, her movements and breathing cadence, the food she eats,. Her bond with the baby is forged in part by hormones, the permanent changes growing a baby makes to your body.