Indeed. Immigration is the big test for European social democracy, though I'd argue that so long as the social contract is respected, and economic rewards are e

Indeed. Immigration is the big test for European social democracy, though I'd argue that so long as the social contract is respected, and economic rewards are evenly and justly distributed, then we should be ok. If people have good jobs, affordable housing, and a future for their children then they are much more amenable to accommodating outsiders. Unfortunately this is not how things are working out right now - Europe has been badly affected by wealth concentration (driven by zero interest rates? Offshoring? Financial engineering?) just as the US. For example in Portugal house prices and rents have exploded in recent years, and who are they blaming? Digital Nomads, when in fact AirBnB is facilitating lucrative short term lets for those (often Portuguese) landlords able to take advantage. Note that some places in Europe have already seen large scale immigration since WW2, usually from their former colonies - e.g. UK, France, and Portugal again.