The Graph That Explains the Migrant Crises of 2016-2100, by Steve Sailer, who put togther this graph based on the U.N.’s 2015 revised population estimates:
That’s probably not going to happen due to some combination of (A) intelligent self-restraint, (B) mass migration, and (C) Malthusian Nightmares (war, famine, disease, etc. etc.) ….
Keep in mind that there’s not a one to one relationship between population growth and emigration. In general, people try to assess whether the future at home looks brighter than the present. But people in Africa and the Middle East can see their countries’ futures will be more crowded and constrained.
[A]t present, white people don’t seem to be making much of an effort to facilitate and encourage reasonable family planning in Africa. Because that would be, you know, racist. Which is the worst thing in the world, much worse than the U.N.’s population forecast.