The relative underdevelopment of the Islamic world (due to imperialism) is why large Muslim populations even exist in western Europe. Most Muslim immigrants to Europe in the past century would have preferred to stay in their home countries if they had the same opportunities. Some degree of cultural conflict and misunderstanding is inevitable when people from different cultures interact for the first time but capitalists have deliberately oppressed and hyperexploited the immigrants (which makes them resent the native populations) and deliberately fed the native populations' prejudices to keep the working class divided.