While “Britain” or “Great Britain” does refer to the general area, neither of them refers to a country. Britain is a general term for Wales, Scotland and England collectively, while The British Isles also includes Ireland (Northern and the Republic).
True.
England is most often incorrectly named in this way, and English people are often referred to as “British”.
The term "British" refers collectively to the inhabitatants of Britain: English, Scots and Welsh.
If they can't get straight what British means, what good are they?
BTW, it's just stupid to claim the English conquered Scotland. The countries became united when the Scots monarch inherited the English throne. IOW, if anything Scotland conquered England.
It’s all Greek to me