I am deeply, deeply grateful that none of the mad procreators in my immediate social circle are the kind of mother who feels the need to condescend to non-mothers - as you say, it's poisonous. I also darkly suspect that in a reasonable number of cases it's defensive, denoting a need to justify their own decision in order to come to terms with its inherent difficulties.

I also have to say: we're all Wimmin and biologically the same? so second-wave ...