Comment by TomBogus

The economy is strong because of immigration, particularly white collar immigration from EU countries. Without them businesses cannot grow in the same rate. Immigration leads to net job creation, meaning also more jobs to fill for locals. It's not zero sum. Public finances would be in a much more dire state without immigration and the locals will have to bear the public debt burden, maybe not immediately but eventually. Granted, housing and infrastructure do have to be built to keep up with population growth indeed, but it's a better problem to have than a depressed economy with decaying infrastructure and housing stock.