What you describe also affects the immigrants. In america, immigrants generally look to get in and probably settle down. Immigrants in europe are often shopping

What you describe also affects the immigrants. In america, immigrants generally look to get in and probably settle down. Immigrants in europe are often shopping for jobs in different countries, maybe a year in country A , another year in country B, always looking to move north. In the meantime they don't grow roots any new country but keep hanging out with their kin or other immigrants. You 're right however, cultural barriers are high in europe, even for EU immigrants. Europe should have thought twice before carelessly declaring an open immigration policy.