I live in one of the cities in England with a larger Muslim population. It's working out for me fine.
I see far more bad social effects, e.g. science-denial as well as religiously motivated laws, from Christians than from Muslims. Science-denial, in all its forms, is a far greater concern to me than the minuscule risk of, e.g., terrorism because I'm concerned not just about myself but future generations.
Note: not all Christians are involved in science-denial, nor are all Muslims involved in terrorism. It's an extreme fringe of both. However, that extreme fringe is larger for Christians than for Muslims, because of the larger population to draw from.
I go all over the place and talk to all sorts of people. I've been looking at a Muslim forum (see links before) and there are fewer posters in total and fewer Atheists. However, I'm not claiming that there are equal proportions in any way. I'm just pointing out that there are Europeans, such as myself, who do debate Muslims. I haven't joined any Muslim-only or Muslim-centric forums. I've debated Muslims on more general forums.