"The UK, as we have seen, has yet to reach that highest degree of pragmatism, and many other countries are far away from it."

I'm not so sure that the name thing is the problem in the UK. I imagine that most of the minority in NI who don't regard themselves as British would be just as unhappy to be called United Kingdomers. It is as much as political stance as much as anything. Likewise probably more so in Scotland. People in Scotland mostly know they are British but a minority make a political choice to not class themselves as British at all. They would be exactly the same with the term United Kingdomers. When they say I am not British at all they are meaning I want an indepedent Scotland not that they dislike the term British. Actually the SNP have even suggested that independence would strengthen Britishness. You may not agree with it and the Scottish unionists scoffed at the suggestion - however the thinking is that take the politics out of Britishness and even those who say they are not British at the moment will be more likely to accept they are British on a geographic, cultural and family level.