I still don't understand (although it seems I did misunderstand the first post you made). The UK will continue to exist. They're not asking for the destruction of Westminster and the break-up of NI, Wales, and England (although I don't think NI is part of the UK?).
It's semantics, around the name, how can it be the United Kingdom of Great Britain and Northern Ireland (to give it it's full name), if it no longer contains all of Great Britain (that being the main island).
The United Kingdom of England, Wales, Northern Ireland, and some other bits?
Either way, arguing about a name is no justification for anything other than self-determination, that's just something pedants will get caught up on, who can't appreciate the bigger picture.
It's semantics, around the name, how can it be the United Kingdom of Great Britain and Northern Ireland (to give it it's full name), if it no longer contains all of Great Britain (that being the main island).
The United Kingdom of England, Wales, Northern Ireland, and some other bits?
Either way, arguing about a name is no justification for anything other than self-determination, that's just something pedants will get caught up on, who can't appreciate the bigger picture.