The problem that most Europeans face today is that they don't have a vision of the kinds of positive cultural values their societies stand for and should promote, other than endless tolerance and moral relativism. What each European society needs is to invent an open form of national identity similar to the American creed, an identity that is accessible to newcomers regardless of ethnicity or religion. This was the idea behind Bassam Tibi's concept of Leitkultur (guiding or reference culture), the notion that the European Enlightenment gave rise to a distinct and positive universalist culture based on the dignity of the individual. Muslims coming to Europe would be minimally expected to accept this perspective as their own. The German Christian Democrats timidly endorsed a version of this five years ago, only to retreat in the face of charges of racism and anti-immigrant prejudice from the left. Interest in a "demokratische Leitkultur" has been revived in the wake of recent events, however, and a vigorous debate has opened up over how to define it. There will be many missteps along the way: The state of Baden-Württemberg, for example, recently introduced a test that would require the respondent to support gay marriage as a condition for citizenship, something deliberately designed to exclude Muslims.
Time is getting short to address these questions. Europeans should have started a discussion about how to integrate their Muslim minorities a generation ago, before the winds of radical Islamism had started to blow. The cartoon controversy, while beginning with a commendable European desire to assert basic liberal values, may constitute a Rubicon that will be very hard to re-cross. We should be alarmed at the scope of the problem, but prudent in responding to it, since escalating cultural conflict throughout the Continent will bring us closer to a showdown between Islamists and secularists that will increasingly look like a clash of civilizations.