Add the United Nations social engineers who mandated, by force if needed, that Germany open their borders to foreign immigration right after WWII. This was an effort deemed to "break up" that German Purity master race uber alles dogma.
Well, the new 'master race' has started moving into Germany and everywhere else in Europe, with or without mandates.
What would we do without the Useless, er. United Nations?
yes, i am well aware of what we made germany do right after ww2. it was a stupid and shortsighted thing to do on the part of the allies.