You read a book about specifically Sweden? Or about Sharia and Europe?
Actually I truly doubt we'll ever get any Sharia laws. Though, I was scared as hell when a muslim community a couple years ago suggested incorporating some Sharia laws. Not that they'd ever stand a chance against the Swedes on that matter, but fortunately another muslim community took words and condemned it, but for how long can we stay out?
But we're such non-believers in Sweden, we just have to make them wake up

If we stop segregating them we may actually get them to realize there's no gods, I've already come across a few muslims born here that don't care about their religion at all or have actually become atheists. Maybe I'm just dreaming too much, some will always be dogmatic I'm afraid.