Blood runs hot whenever this subject comes up and the more your own kith and kin are here as a result of recent waves of immigration (certainly post Viking but more likely 19th & 20th century post famine / pogrom / fascism / empire etc etc) then the hotter it will run.
I suspect Mozza likes to time his little social commentary explosions for strategic moments when he needs a little profile lift. No fool he.
JC just seems to let it all hang out so we should all reserve the right to let ours all hang out as well, no?
If we all decided to cut each other some slack on this one would that be a too wooly and bourgeois liberal an idea? ;-)