You're assuming the trend of <2 children per woman would continue forever with the thought of "heading toward extinction". Its as silly at saying having >2 birt

You're assuming the trend of <2 children per woman would continue forever with the thought of "heading toward extinction". Its as silly at saying having >2 births per woman is "heading towards an infinite population". Should we be immediately worried that our population is infinity while our resources are finite? If not, why are we worried about extinction from basically the same point?