Why? We are told that having a child is the most environmentally damaging decision one could make [1,2,3,4]. And the developed world already has sub-replacement

Why? We are told that having a child is the most environmentally damaging decision one could make [1,2,3,4]. And the developed world already has sub-replacement fertility - for about half a century now. But that counts for nothing? [1] https://www.theguardian.com/environment/2017/jul/12/want-to-fight-climate-change-have-fewer-children https://www.theguardian.com/environment/2017/jul/12/want-to-... [2] https://www.nbcnews.com/think/opinion/science-proves-kids-are-bad-earth-morality-suggests-we-stop-ncna820781 https://www.nbcnews.com/think/opinion/science-proves-kids-ar... [3] https://www.theguardian.com/world/2018/jun/20/give-up-having-children-couples-save-planet-climate-crisis https://www.theguardian.com/world/2018/jun/20/give-up-having... [4] https://www.washingtonpost.com/posteverything/wp/2015/07/14/having-kids-is-terrible-for-the-environment-so-im-not-having-any/ https://www.washingtonpost.com/posteverything/wp/2015/07/14/...