Aside from atheists, I think Christians are the majority in Europe, why would they need to be come the majority when they already are.
There are plenty of Christians pinheads in Taiwan who openly protesting against Homosexuality, even physically attacking people who aren’t on their side. That doesn’t mean they do it because they know nothing would happen to them. They just do it because they are being selective fundamentalists.
That’s exactly the same thing these homophobic Muslims are doing. There are plenty of wiggle room within their religion to be more open towards LGBT people, and many Muslim countries have taken that path before, but some Muslims today just selectively chose to not budge on this issue while openly violate many other restrictions they deem unimportant.