Now
that's not a can of worms I want to open Ken (see the many Scotland independence threads on this forum to find out why). But to answer your questions about the relations between the constituent nations of the UK -
https://www.youtube.com/watch?v=rNu8XDBSn10
So the bottom line is that folks in Britain view themselves as English, Welsh, Scottish, and Irish first, and British second? Even though all have British passports. Interesting.