... and Westminster would disagree, and then what? If they don't negotiate, attempt a UDI?
Only by a poll of the nation that Westminster can't ignore in terms of result, either because they agreed to it in the first place, or because the result was so overwhelming they have no realistic option but to respect the result, will Scotland become independent.
That's the only way around arguments about parliamentary mathematics, and also the precedent set by Salmond and Cameron in 2012.
Arguably, the period after 2014 was always going to be a fallow period in terms of achieving a second referendum, and in more quiescent times it might have been even longer. It's been 7 years now, after Brexit and with the demographics changing in Yes favour.
Now is a good time to try and push the issue.
I get VT's point about multiple indy parties changing the nature of the conversation, but it won't be in this election. Hard to make a case for multiple indy parties in opposition to each other when both parties are drawing their support from the same cohort of voters. The reason multi indy parties has traditionally been the clincher is surely because that is the end result of a population so massively pro Indy that multiple parties could be supported by it. As it is, Yes has maybe a 1 or 2 point lead. It's still a fairly even split between Indy and Unionist parties. A large Alba or Green contingent might give it the appearance but not the substance of a population that has made its peace with Indy.
Having said that, I think the good guys would win a 2nd Indy Ref now, and the Scottish Tories constant 'stop a 2nd Indy Referendum is not the rhetoric of people who think BoJo saying no is a viable strategy.