Former Dutch parliamentarian Ayaan Hirsi Ali, as usual, goes directly to the heart of the problem, probing the loyalties of Muslims living in Europe. (Thanks to Jihad Watch.)
In 2006, she asked Tariq Ramadan, considered by many to be the face of moderate Islam in Europe, what he would do if he had to choose which of the countries (Egypt and Switzerland) whose nationality he holds he would fight for. He huffed and puffed, then refused to answer the question.
Hirsi Ali she suggests that many other Muslims would be hard put to decide in favor of the European country where they are living. This is due partly to their idea of loyalty to Islam, and partly to the conditions under which they have been granted various European citizenships. As she says: "... what European countries have done is give citizenship to individuals who feel no obligation to share in their societies for better or for worse, for richer or for poorer and in the event of a catastrophe, sacrifice themselves." You kinda get what you ask for.