I am not really following your discussion about ethics of having children, but I thought I would mention Uriupina.com, a blogger from your city who does take the radical "antinatalist" position. For her it's a development out of a generally pessimist philosophy, and I think she studied psychology too... So, she is a mind that is geographically near yours, but philosophically distant... but I thought I would still mention her, just in case.