Have you read this thread properly? I want you now to tell me why the 'Islands are not theirs' then I will help you understand.
It depends.. Many people on the left see themselves British only as they are allergic to Nationalistic sympathy's.. Some also see them selves as 'True Scots' True Englishmen' only, particularly those in the Independence debate.. others say they are 'Scottish/English First, British second' I myself consider my self English and British.. though like many in these Islands I have Irish, Scottish and Welsh Ancestors..I am English because I grew up there and schooled there,, so I absorbed the English culture.. But I now live in Scotland.. married to a Scot..