'if you love someone you listen and support them. No matter how often they speak of the issue'.
That's not 'love', that's co-dependency. If someone close to you becomes obsessive about an issue regarding a country they no longer live in yet feel the need to imagine they 'somehow still belong' or have any valid right to pontificate about, then if you care about them, you tell them that they appear to be unable to 'move on', despite their decision to emigrate.
There are countless ex-pat bars around the world where embittered ex-Brits congregate to moan. Sometimes it's a faux-English pub showing cricket and footie and serving 'ye olde English' food.
There are various online sanctuaries for ex-pats with valid or delusional grievances about their status:
http://www.telegraph.co.uk/expat/
Are you seriously suggesting Morrissey doesn't come across as 'bitter'? He no longer lives here, may not pay any revenue to the Exchequer, yet expects a free pass to comment on constitutional matters. Not going to happen. Any public figure who comments on British politics and constitutional mattes can expect to have their motives examined closely.
regards
ps: 'nice' is a Morrissey 'boo!' word. 'whole life in ruins' etc