It is a tricky debate because we also undermine integration by singling out muslims as a problem. I do want muslims to feel welcome and part of society, but there are significant challenges in integrating muslims into Western society.

Christian Europe and the Muslim world has a bad history with long conflicts with the Ottoman Empire invading Byzantium and later the rest of Europe as well as the European response with crusades.

Today the conflict is not about different faiths but about strongly secular society clashing with deeply religious people. I remember somebody remarking about the challenge of integrating muslims into Denmark considering it is a country where the national past time is drinking beer and eating pork mixed with extremely liberal attitudes towards nudity, sex, pornography and drugs. Add that to the mix that Denmark has the oldest history of free press with quite biting satire that kicks in all directions and you got yourself setup for a lot of conflicts. The Cartoon conflict when Danish cartoonists created satire over Muhammed demonstrated that very clearly.

Yet, I find it problematic for a liberal society to explicitly exclude people based on their faith. We also have to consider that the muslim population is a big and prominent part of Europe today and will stay that way for the future. We must find ways to get along and find common ground.

Although I sometimes wonder if there should be some sort of contract of commitment to new citizens. That they demonstrate commitment to the core values of the society they wish to become part of. I don't think it is fair to be welcome to a new society and get fair treatment and benefits while rejecting core values such as gender equality, freedom of expression (including insulting religion)