> I would argue that the relative freedom of movement forces residents in Europe to confront the inequality in their everyday lives.
Imagine you see China today, let's say Shenzhen skyline. 20 years in future you go there and all lights are out, windows are broken and homeless people everywhere, streets are filled with dirt and woman are scared to go out when it gets dark. If I then tell you "well, looks like some poor people moved there, everyone is moving closer together, that's why we see some problems here"..... Nooo! It would be some massive government failure that is responsible.