Do forgive me, I thought I had posted a response (!). Evidently not!... 

Fire is fought with (very well organised, well read and very polite) fire on Wikipedia I'm afraid; unless we challenge this, and outline why the use of English nationality over British nationality is just not encyclopedic, providing some authoritative citations and examples of other encyclopedias, then the mess we're in will remain.

I certainly have no intentions of "Britishing" everything on Wikipedia - indeed I've voted for the descriptions of places in the UK to use the constituent country, and to use the constituent country flagicon when a settlement is twinned (as settlements can be twinned within the UK). However, there just is no such thing as a Welsh passport or Scottish nationality law - we should be using the UK as a frame of reference where it is wholly verifiable and applicable (London, England isn't hosting the Olympics, but London, United Kingdom - a balance of context is needed).

A compromise may well be all that is needed here - [[British nationality law|Northern Irish]] might be a thought, or some kind of duality of UK and C.C. - but I believe it should be codified and consistent throughout Wikipedia.

My suggestion that I thought I had posted, was that I think we should search for some contributors who share our concerns and understanding. I believe we should do this not to form a "club" as such, but to test the water on how we might approach this, discuss some initial ideas, and strengthen our body of knowledge on the matter.