I say it doesn't matter much, as long as they become secular they could even burn half of the Quran in the process. Just get the job done. I don't care about what the book says as long as it doesn't impact legislation. I have read parts of Sharia and I found it incompatible with western societies (and any democratic country at all).
Whoever fights monsters should see to it that in the process he does not become a monster. And if you gaze long enough into an abyss, the abyss will gaze back into you