They always will be, a history of conquest and assimilation, hard won independence and also strong opposition from people who want Britain to be Britain (not Welsh, or Scottish etc.).  My grandmother (yes that close) was thrashed for speaking welsh in the playground of her school (an experienced mirrored in First Nation people in your country) and a culture was almost wiped out at the time.  Those things are within living memory so advocates of "we are all British really" will get a  strong response.  Same on the Irish pages where memories of cultural assimilation are also strong (and of Cromwell for that matter.  I remember being on civil rights marches in Belfast in the 60s as catholics did not have a vote, something a lot of people forget or don't know (and still have the scars of B-special brutality from that).   I could go on, but its not an academic issue for many editors, it is their lived reality and history.   TALK