I think this guys is just taking it overboard. I mean, we're having a problem with overpopulation, we won't be wiped off the face of the earth any time soon, unless there is just a huge, huge nuclear war.
Yeah, well... even if women "lose fertility," technology would probably make up for it. I mean, it's not like women aren't still having babies. They probably are having them at a much better rate than before, in fact.