"Die Integration passiert ganz von allein."
What exactly does this Die Integration mean? Is it as popular in real german as it is in duo?
In Germany, this is very common in the sense of 'social integration', we even have some Integrationsbeauftragte (int. commissioners) here. See, for example, http://www.spiegel.de/international/germany/immigration-survey-shows-alarming-lack-of-integration-in-germany-a-603588.html
There are other kinds of integration, but here, it is mostly known for social situations. How does a child integrate into their new school class? How integrated are minorities? etc.