The muslim community is, you know, all those that are...erm, Muslim! They've got cultural problems within the faith that clash with the west. This kind of thing doesn't seem to, on the face of it anyway, being resisted as strongly as it could. A significant minority of British Muslims are sympathetic towards terrorism, violence within the family, formation of islamic states. Section 11 of the link has a load of stats from polls, pretty difficult to interoperate without proper control polls though.
Yes, Christians can be extremists too, not sure how that absolves the problems within Islam though.
https://www.ipsos.com/sites/default...-on-muslims-in-great-britain-ipsos-mori_0.pdf