Multiculturalism is an inclusive philosophy. Its potential for integrating newcomers and minorities into society is undermined by false notions of its tendency to produce separatism and poverty.
If society depicts immigration and immigrants as worthless and useless for the economy, these enemy images will lead to a hostile attitude towards all newcomers. The breach between locals and immigrants will become deeper and this soon undermines the social cohesion of any society.
In the case of the seventeenth century Dutch Republic, there was no single, dominant religion. There was also no absolute majority religion. Instead, each province and each town had its own religious cultural groups.
Mono-cultural nationalism can no longer provide us with the national identities we need. The formation of multi-cultural civic identities requires a new way of drawing our political maps.