Colour me assimilated
While thinking about Scottishness and Britishness, my non-Scottish readers might enjoy the Daily Record's Scottish take on Andy Murray's splendid achievement in getting to a Wimbledon Men's Final (the first British player in 74 years, and the first Scot ever, to do so). The comments thread demonstrates the Scottish/British dichotomy rather nicely.
Personally I celebrate both his Scottishness and his Britishness. I was born in England, but support Scottish independence. If that means I have to apply as a resident for full citizenship I shall do so, but I will be happy to retain my birth citizenship as well if possible (which it usually is under such circumstances).
If a Pakistani immigrant who has lived in Britain for thity-odd years retained his Pakistani citizenship when he became British, why would he feel any less British than I feel Scottish?