I'll tell you why the English have ignored the fact that Scotland voted remain.
It's because they're trying to subordinate the idea of Scotland to nominally the United Kingdom, but effectively to England.

The English dominate the United Kingdom in Parliament. The English have got a virtual monopoly on the government of the United Kingdom. They pretend they don't, but they do.

The thing is, Brexit is the only time the dominance of England over the United Kingdom has been tested.
And the English have quite evidently failed.

If there was any truth to the English illusion of the United Kingdom, they would have never imposed this English nationalist Brexit on Scotland.

And I don't think any previous government would have ever dreamed of doing this.

No. This is an outburst of English nationalism using the built-in dominance of England over Parliament to kick the other nations aside.