Notice who weren't the colonizers: Italy, Switzerland, Germany, Scandinavia, eastern Europe. They have their own problems today, but Asians, Africans, Muslims, etc., AREN'T some of them.
Italy has Big Time problems and they did have African colonies.
Muslims are a BIG problem in Sweden and other parts of Scandinavia.
Turks are a significant ethnic group inside Germany.
This isn’t about colonial payback. This is invasion pure and simple.