They’re basically demanding better food, free houses, a transfer somewhere else (where they could deal drugs more effectively, no doubt).
This happened in Trent, in South Tyrol, which Austrian nationalists consider to be part of Austria. Italy acquired it in the peace settlement after the First World War. Hitler talked about this in Mein Kampf; he said it wasn’t worth falling out with Mussolini over it.
I imagine Hitler would have made short work of these Africans.