I believe all are born human. They are born with the capacity to take in the characteristics of the social world around them and adapt themselves to what they find there . If they experience "love and light", bar a gene for psychopathy inadvertently being switched on by something in the environment, they should turn out pretty decent. If they experience hurt and harm, human development can take a pretty different course.

I think infants are born with the capacity to become pro-social or anti-social. It mostly - but not exclusively - depends on the adults they get.