Now for a more dry factual look:

https://en.m.wikipedia.org/wiki/Unit...Administration

Note the United Nations was what the Allies referred to themselves. This refugee organization did later get absorbed by the current United Nations. So the oldest UN organization is the one dealing with refugees.

The idea that: "That's pure nonsense. European countries and European migrant nations were helping Europeans - the flux has in no way reversed. Most appropriately, Syria hasn't even signed that thing.".

Compare and contrast with a list of the countries who signed the UNRRA:
The Agreement for United Nations Relief and Rehabilitation Administration[3] founding document was signed by 44 countries in the White House in Washington, November 9, 1943. UNRRA was headed by a Director-General, and governed by a Council (composed of representatives of all state parties) with a Central Committee representing the United States, Britain, China, and the Soviet Union.[4] The other countries who signed the agreement included: Australia, Belgium, Bolivia, Brazil, Canada, Chile, Colombia, Costa Rica, Cuba, Czechoslovakia, Dominican Republic, Ecuador, Egypt, El Salvador, Ethiopia, the French Committee of National Liberation, Greece, Guatemala, Haiti, Honduras, Iceland, India, Iran, Iraq, Liberia, Luxembourg, Mexico, Netherlands, New Zealand, Nicaragua, Norway, Panama, Paraguay, Peru, Philippines, Poland, South Africa, Uruguay, Venezuela, and Yugoslavia.
So are all these countries European? No, not by a long shot. So my statement was not nonsense. You have somehow mistaken the EU for the UN.

Next time take the easy way out and watch a movie.