As a Scotsman, this is a sad day. My only hope is that we leave the Union and that Ireland can work out it's differences and pursue reunification. There is nothing else left for it. A tragic time to be British and nothing to celebrate here.
(Please assume that Westminster will offer UK citizenship to any Scot that moves to England, Wales or Northern Ireland and applies for UK citizenship.)
But Scotland produces only about 6 percent of the UK's total exports. The vast majority of what it produces is "exported" to England, Wales, and Northern Ireland (about £50 billion to the UK compared to £15 billion to the EU and £17 billion to the rest of the world). It also has a fiscal deficit that's largely offset by the English taxpayer. Scotland is much more economically dependent on the UK than the UK is on Scotland.
Outside of the UK, Scotland may be a credible middle-ranking small country comparable to Czechia. It certainly could not afford to maintain its current level of public services. Without Scotland, the rest of the UK would remain one of the largest economies in the world.
(btw, Scotland was never an Imperial possession of British Empire. The Union with Scotland was peaceful, and largely in the interests of the Scots, who had succeeded in destroying their economy through mismanagement, unwise allegiances with the French, and unsuccessful attempts to build their own empire).
The loss of the HMNB Clyde (the Trident base) poses problems, but not insurmountable ones. Devonport in Plymouth and Miford Haven (more problematically) are suitable replacements. Also, Trident provides about 8,000 jobs to the Scottish economy, and they'd all move south too.
I think I have already expressed this perfectly clearly in previous comments, so this is the last I will say about it.
By all means continue to shrink yourself down into the smallest tribal sub-population you can slice yourself into. I’m sure prosperity is right around the corner when you finally do.
It would almost certainly be better off without.
Scotland, NI, Wales and England are stronger together. Our shared history is to be celebrated and we should pull together in this new chapter, not tear ourselves apart.
I wish you & your family an amazing 2021. Peace.