"If you vote to remain in the United Kingdom, Scotland will remain in the European Union" (words more or less to that effect) - David Cameron, the then Prime Minister in 2014 in the lead up to the Scottish independence referendum.
It seems that Scotland (as well as Northern Ireland) have been sold a lie by the elite in Westminster, as in the 2016 referendum, they both voted to remain. This has led to a democratic deficit more so over the last three years in that Westminster have not listened to the concerns of Northern Ireland and Scotland, with the biggest threat in the near future being the break up of the United Kingdom. With the three types of nationalism (England - Conservative, Scotland - SNP, and Northern Ireland - Sinn Fein) returning the most number of MPs in 2019 for those parties in those parts of the UK, I believe it is this rather than had the UK (as a whole) remained in the EU that will see the end of the UK as we know it.
Again, Scotland (this may possibly apply to the former Metropolitan Counties areas as well) once again, has not had the government it has voted for, and this has been the case since 1979. I have summarised the Scotland voting patterns for each General Election since 1979 below, with which government has ended up being in power:
1979 - Mainly Labour, got Conservatives
1983 - Mainly Labour, got Conservatives
1987 - Mainly Labour, got Conservatives
1992 - Mainly Labour, got Conservatives (only just, due to a late swing in the day to the Conservatives)
1997 - Mainly Labour, got New Labour (which were not new, and were most certainly not Labour)
2001 - Mainly Labour, got New Labour (which were not new, and were most certainly not Labour)
2005 - Mainly Labour, got New Labour (which were not new, and were most certainly not Labour)
2010 - Mainly Labour (with the only constituency changing hands was mine of Glasgow North East from Speaker to Labour), got Conservative-Lib Dem coalition
2015 - Overwhelmingly SNP (with 56 out of the 59 constituencies, with the remaining 3 being 1 each to Labour, Conservative, and Lib Dem), got Conservatives (only just, due to errors in the polling methods)
2017 - Mainly SNP (reduced to 41 constituencies), got Conservatives with some support from DUP
2019 - Mainly SNP (48 out of 59 constituencies), got Conservatives
As can be seen above, no matter what the voting pattern of Scotland is at General Elections, since 1979, Scotland has not had the government it has voted for. Although I do understand the reasons how Scottish nationalism has become fashionable nowadays, I do not support the SNP's version of independence. I would like to see the whole of Great Britain (assuming Northern Ireland is returned back to the Irish) having progressive federalism, with the voting system being one of proportional representation rather than the outdated and ineffective First Past the Post system.