Speaking as an Englishman, I think the issue of Scottish independence is basically an issue of imperialism.
The same applies to any country outside England. The British Empire was essentially the English Empire.
Scotland, like so many other countries, should be independent as a matter of principle because it is a different country that was occupied by the English state over a period of many centuries.
I think the wishes of the English people are totally ignored in this question as in so many others.
I am by no means the only English person who believes that the English Empire should be ended on principle.