The British Sense?

I have never lived in Scotland, but my late father was a Scot, so if Scotland became independent, then I could become a non-dom. Since, like Ireland, it would presumably keep the system, then I could become a non-dom on both sides of the Border, and no pay tax anywhere.

Should you have to pay tax in this country on your income abroad? At the very least, you should if everyone else has to. In fact, that is perfectly normal. For example, it is a condition of American citizenship no matter where in the world you live. 

If being a non-dom is unacceptable in the wife of the Chancellor of the Exchequer, then how can it be acceptable in anyone else? In that case, then how is the existence of non-domicile tax status morally or politically acceptable at all?

Until a few hours ago, she was said to have no choice in the matter. What changed? "I understand and appreciate the British sense of fairness and I do not wish my tax status to be a distraction for my husband or to affect my family"?

Well, she could have said that before. The line was that this was involuntary; that she just was a non-dom, whether she liked it or not. That was not true. But it was the line, and as such it was repeated even by her husband, the Chancellor of the Exchequer.