The mind set of Scottish people is very different from that of middle and SE England. We know that the majority of voters in Scotland are left of centre and have been for generations. If we look at history the Scots, before the Union, had never instigated an Imperialist War. Fighting was either between themselves or to repel invaders, e.g. the Vikings and the English. The fallacy that Scots chose to unite with England because Scotland was bankrupt is 'Fake News'. Scotland was doing fine, trading with the low countries, exporting woollen goods, and fish, making a diverse living by tending crofts, fishing and weaving. Yes some of the nobility lost much of their wealth in the disastrous Darien fiasco, exacerbated by English and Spanish attempts to thwart and disrupt the Scots trade. These Nobles sold out the Nation for a 'handfu' o siller' and moved their familes to James 1 &V1's court in London. Ordinary Scots had no say in the matter whatsoever and indeed rioted in the streets, then found themselves at the mercy of these absent landlords and thus the Clearances began.
Henceforth, for 300 years, all revenues raised in Scotland (from oil, whisky, VAT, Income & Corporation Tax, Death duties, etc. go straight to Westminster and only such as the English dominated Westminster decides is returned to fund Services, infrastructure projects, benefits, etc. etc.
To highlight one of hundreds of injustices in this central Government system, Scotland now produces almost 100% of its electricity from renewable sources. This means that the power generated is cheaper than conventionally produced power. BUT in order to sell this power to business, homes it has to go via the national grid and there are huge fees for doing this, particularly if the electricity is produced in the north of Scotland, because the fees are graded by the DISTANCE FROM LONDON. So if you live right next to a generating windfarm in Caithness, the electricity to power your house is charged as if it had been sent to London and back via the grid.
It is not surprising that with the bulk of the voting population being relatively close to London that UK monies are spent to suit conditions there (just as Suedonim complains about, on a smaller scale, within Scotland). However, when this 'please the majority' ethos prevails in every aspect of our lives, from TV and media through 'free delivery except to the highlands and islands of Scotland' and huge funding for the London Olympics, not a penny piece for the Glasgow Commonwealth Games, to bartering fishing quotas and arbitrarily moving the sea border to ensure that some oil and gas fields were in English waters - it is time to call it quits. Democracy demands government by the people, as near to the people as possible so that local issues, concerns, conditions, needs and wishes can be heard and acted upon.