Jim Sillars, 2014 : On 18th September, between the hours of 7am and 10pm, absolute sovereign power will lie in the hands of the Scottish people. They have to decide whether to keep it, or give it away to where their minority status makes them permanently powerless and vulnerable.
Jim Sillars, 2018 : I've decided to give my absolute sovereign power back to London, because I'm anti-EU and I cannot accept the Scottish people's overwhelming majority decision to remain in Europe. If Brexit needs to be imposed on Scotland by the votes of another country, so be it. Getting out of the EU is more important to me than national sovereignty.
That sounds like a catty point, but it could hardly be more fundamental. If you claim to believe in independence because you think the Scottish people's will should hold sway, even when it differs from an election result in England and Wales, then it follows that you must abide by majority decisions in Scotland even when your own personal views are more in line with Westminster. If you don't do that, it could be argued that your commitment to sovereignty is every bit as shallow as the "ninety-minute patriotism" you once accused some of your fellow Scots of.