Map shows only countries where over 20 per cent of the population are migrants (were born outside of that country). The combined population of these countries is only 179 million. Living in a migration-nation is pretty rare. pic.twitter.com/mt7k1zOCBB

— Simon Kuestenmacher (@simongerman600) January 29, 2022

Very difficult to do without massive problems occurring as a result (no matter the reason they occur; that they do is what matters).