I think Britain and other European countries need to nip in the bud and do some Stalin-like things to 'move things around' to force assimilation of immigrants, starting with these fanatics. Or pass a law to expect some reasonably defined criteria of assimilation by a certain date. Failures be asked to leave to their choice of countries, all expenses paid.
A society should never go too far in expecting 'conformity' but it should not bend over backward to the primitive mindsets either.
These immigrants fail to understand that, yes, 'social crimes' etc are not be tolerated but the proper course of action is going through the local civil society, the media, the courts.
