Every first world economy on Earth is already below replacement rate right now, we're not going to see some out of control population disaster scenario. The mo

Every first world economy on Earth is already below replacement rate right now, we're not going to see some out of control population disaster scenario. The more likely situation is that we need to A. get over our racism and xenophobia to use the population bombs going off in less developed countries to replace our populations that don't want to replace themselves and B. eventually start seeing human replacement as a societal cost that will need to be afforded in some way once the entire world is sufficiently developed to go below the natural replacement rate. At which point we get to set population targets and hold our numbers stable. A is something that we should have been doing for 30 years now. B is going to be of concern next century after the population plateaus.