And one could argue that: 1. Immigrants typically have higher TFRs that within years wipes out the gains you allude to 2. Productivity depends on how skilled t

And one could argue that: 1. Immigrants typically have higher TFRs that within years wipes out the gains you allude to 2. Productivity depends on how skilled the immigrants are; much of Europe has a large chunk of immigrants with lower productivity than the native born. Anyway, this is a low signal discussion on both sides; this is my last comment on this matter