valdavi
The PR referendum was 2011, the Scottish independence referendum 2014. If we have another referendum to alter the voting system, we'll also need to let the Scots have another won't we? & after Brexit, I can't see either of the main parties keen to go to the country/ies on either of those issues.
This is completely muddled thinking. PR has nothing to do with Scottish Independence nor Brexit. They are not linked.
Also, the easiest way to alienate Scots is to patronise them, which you did with such ease as Paddyanne quite rightly pointed out. It should not be up to Westminster to "allow" a Scottish Referendum on Independence.