Don’t think it is such a far-fetched idea. There’s even a book about it:
Remnant Newspaper In The Mosque of Notre Dame, set in 2048, Muslims from Arabia and middle Europe have taken over the governments of Western Europe and locked down the countries under Sharia Law—minarets, burkas, and all.
Picture Paris’s l’Arc de Triomphe as the staging ground for the stoning of wine makers. Imagine the Louvre bare and stripped of all of it works of art. And consider the grand cathedral of Notre-Dame de Paris converted into a Mosque, complete with his ’n’ hers footbaths. (By the way, the Basilica of St. Peter in Rome has been flattened and turned into a garbage dump.)
How did this nightmare become the reality in the motherland of civilization? A lack of faith and lack of fight left the old lands of Christendom defenseless against massive, calculated immigration into a timid West that has grown too selfish to stand up for itself.
The Mosque of Notre Dame fixes blame for the Muslim takeover right where it belongs: on the failure of the Catholic Church and the Orthodox Church to evangelize—and in particular, the failure of post-Vatican II Church leaders to assert the Church’s unique claim on the truth.
The book was written by Elena Chudinova, a Russian, who is a Traditionalist Catholic from Moscow. It has enjoyed great success in the “front-line” nations where Islam and the West are colliding. Originally published in Russian in 2006, it has been translated into French, Serbian, Polish, Bulgarian, Turkish, and Norwegian. The first American edition appears finally here in 2015, published by Michael Matt’s The Remnant Press.