> Expulsion of Jews from Spain [...] On 31 March 1492, the Catholic Monarchs of Spain, King Ferdinand II of Aragon and Queen Isabella I of Castile, issued the Alhambra Decree, ordering all unconverted Jews to leave their kingdoms and territories by the end of July that year, unless they converted to Christianity
Someone correct me if I'm wrong, but we (I live in Spain) have come a long way since 1492 (534 years ago) and if that's the most recent example you can find of "Europe's treatment of perceived outsiders" I think you yourself know that stuff like that doesn't happen today, in Europe.
Tbf theres a much more recent example of legitimate antisemitism in europe. One around the same time as us interment of japanese people
A more relevant recent example would be the shameful stripping of British citizenship from a girl who had been trafficked to the Middle East
In the UK two decades ago (admittedly not the shortest time) I heard plenty of terrible words and treatment of Pakistanis (which seemed to be used as a good enough bucket for all brown skinned people) and people with red hair. A general disdain for Continentals was a little more subdued. When I was younger France was famous for it's poor treatment of foreigners and non-francophiles. Consider all the politics and anger towards those that continue to try to cross the Mediterranean on makeshift boats or the constant complaints about "benefit thieves" who emigrate from the Eastern bloc. There are many examples and some of them are not without basis but while things have gotten less stabby-stabby there's some fairly brutal attitudes and behaviors.