Do you know many muslims? I happen to live in a muslim majority area of a major European city. No problems. They're people just like me and you and like most religious people they keep their views to themselves and get on with their lives.
Oh and the area I live in has a muslim politician in charge (and their closest competitor is a Imam) - both have very liberal policies.
Your reasoning seems to be: muslim majority == now they have the power to implement strict religious laws via the democratic process. Well that's absolute nonsense when it's only a tiny minority of them that have these extremist views. I could very easily look at some fundamentalist Christian groups and come to the same conclusions you have but I know that not all Christians believe the crazy crap that some fundamentalists do.
I'm actually terrified reading your comment because you've taken the uneducated bullshit arguments given by people and political parties on the verge of racism/sectarianism and polished it to look like it's intellectual and backed by evidence when that's clearly not the case.