we can recognise the issues it's causing in the modern world and attempt to do something about it.
It's a failure of EU liberal elites to recognise the reality of human nature that led them to force mass immigration on western societies. The solution is NOT to demand that we get used to it. That is to store up trouble for the future. It is a form of utopian thinking that led Stalin to try to create the 'New Soviet Man' and Mao to do similar.