The change in immigration patterns in terms of numbers of immigrants and origins, post WWII is striking to me. I knew immigration patterns had changed but didn'

The change in immigration patterns in terms of numbers of immigrants and origins, post WWII is striking to me. I knew immigration patterns had changed but didn't realize how much, that they changed so much specifically postwar, and how heterogeneity had increased so much. Sometimes I think immigration patterns need more attention, as indicators of other things. The number of displaced persons/refugees worldwide is very high right now, for example. As a minor thing, it makes me wonder about current political tensions in the US. Looking at some of these figures makes me wonder if we're living in more of an unusual era relative to the last couple of centuries than I've realized. Again, not with reference to immigrants per se, but with reference to whatever is associated with such magnitude of sociodemographic pattern change.