Germany, China, Italy, Japan and really every country except for the ones in Central Africa are also affected by birth rates below replenishment levels. What m

Germany, China, Italy, Japan and really every country except for the ones in Central Africa are also affected by birth rates below replenishment levels. What makes North America more resilient than other places is that we're accustomed to immigration and we're very good at assimilating immigrants. Immigrants to the US and Canada become (i.e. consider themselves) Americans and Canadians within a generation. To my knowledge, this doesn't happen anywhere else. As for Mexico, integration is easy given most of their immigration comes from Central and South America where the cultures are very similar with the same language. Of course, anti-immigration populists in both the US & Canada and consisting of both conservatives and liberals, could hamper or weaken this giant advantage