Referring to by insults and obscenities to a biological necessity (for the survival of the species) just shows their insecurity. Fatherhood is also not for me, but I don't hate children or people who have children (or even dislike them). And it's ok if a certain percentage of the population doesn't procreate, the homo sapiens is in no danger of extinction or lacking genetic diversity. But how they fear and look down on them just shows that given the opportunity, they'd be popping out kids left and right.