Sturgeon and other supporters of independence will always support independence and argue in favour of it - but if she loses two IndyRefs in a row, it's game over ... surely ...
If she loses a second time, will you and Sturgeon accept it
That misunderstands how this works - but a second defeat - two in a row - must end Sturgeon's dreams of independence, at least for a generation or two. The only other way is to keep re-running the referendum until the 'correct' answer is given. And that isn't democracy.
Sturgeon hasn't really accepted or respected the first IndyRef result.
The idea of a third referendum is questionable anyway, because I am sure Scotland will vote for independence at the next opportunity - this is probably what Sturgeon thinks, too ... like she thought Scotland would vote leave in the first IndyRef.
But back to what isn't being considered: if Scotland votes Remain in the UK again, any reasonable person would throw in the towel.
("The definition of insanity is doing the same thing over and over again and expecting different results" - Albert Einstein, I think.)
In Quebec they had two referendums on sovereignty and so far the people of Quebec have not wanted another referendum. If they ever want another referendum they should be allowed to have it, but there doesn’t seem to be support for it - I think the most important thing for the people of Quebec is to honour the results of the previous referendums.
^^^ Something in there for you and Sturgeon to learn, I think ...
It is up to voters to decide when, if ever, another referendum should take place - you keep persisting in this fantasy. And as long as you do, I'll keep correcting you: it's up to Boris Johnson, as PM of the UK, when to allow a 2nd IndyRef for Scotland.
You keep forgetting that you, SBF, are a UK citizen. And Boris is UK PM. Therefore, Boris Johnson is your Prime Minister, whether you like it or not.
Edit: and here's another thing to consider - suppose Leave wins IndyRef 2 and Sturgeon is obviously pleased with the result. Does it become best of three, i.e. should there be a decider? Or does Sturgeon say 'I've got the result I always wanted - that's it'?