No way. First the fertility rates in the Third World will remain well above replacement levels. They will want to come to the US and other developed countries. Currently, the US takes in 1.2 million legal immigrants a year--more than the rest of the world combined. And those numbers will continue to increase under our current kinship system of immigration. There are 4.5 million intending immigrants waiting overseas to enter. They have completed all of the required paperwork and are just waiting their turn to enter depending upon what category they are in.
“No way. First the fertility rates in the Third World will remain well above replacement levels.”
What is the present worldwide TFR?