The current crisis has its origins in the collapse of European hegemony over North Africa after World War II and the Europeans' need for cheap labor. As a result of the way in which they ended their imperial relations, they were bound to allow the migration of Muslims into Europe, and the permeable borders of the European Union enabled them to settle where they chose. The Muslims, for their part, did not come to join in a cultural transformation. They came for work, and money, and for the simplest reasons. The Europeans' appetite for cheap labor and the Muslims' appetite for work combined to generate a massive movement of populations.
The matter was complicated by the fact that Europe was no longer simply Christian. Christianity had lost its hegemonic control over European culture over the previous centuries and had been joined, if not replaced, by a new doctrine of secularism. Secularism drew a radical distinction between public and private life, in which religion, in any traditional sense, was relegated to the private sphere with no hold over public life. There are many charms in secularism, in particular the freedom to believe what you will in private. But secularism also poses a public problem. There are those whose beliefs are so different from others' beliefs that finding common ground in the public space is impossible. And then there are those for whom the very distinction between private and public is either meaningless or unacceptable. The complex contrivances of secularism have their charm, but not everyone is charmed.
Europe solved the problem with the weakening of Christianity that made the ancient battles between Christian factions meaningless. But they had invited in people who not only did not share the core doctrines of secularism, they rejected them. What Christianity had come to see as progress away from sectarian conflict, Muslims (and some Christians) may see as simply decadence, a weakening of faith and the loss of conviction.
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. . . Newly arrived immigrants are always poor. That's why they immigrate. And until they learn the language and customs of their new homes, they are always ghettoized and alien. It is the next generation that flows into the dominant culture. But the dirty secret of multiculturalism was that its consequence was to perpetuate Muslim isolation. And it was not the intention of Muslims to become Europeans, even if they could. They came to make money, not become French. The shallowness of the European postwar values system thereby becomes the horror show that occurred in Paris last week.Friedman has no solution to suggest. I take him to be implying that we've got a fight coming, whether we like it or not. He won't claim a moral justification for the fight, but he also declines to be slaughtered.