I am not saying it is anyone's fault. Exactly the opposite in fact. What I said it was not Scotland's fault that a Tory gvt is returned. The exact quote was

"Let's not forget it was Scotland that already severely f@cked up Labour's chances of ever again winning government,
when the SNP mopped up at a previous election.."

That is simply not the case. Labour lost virtually all its seats in Scotland yes - but they for the most part went to the SNP, who would be pretty certain to vote with a Labour gvt against the Tories on most things. The idea that the SNP would not support the formation of a Labour UK gvt is fantasy. They would be unlikely to want to go into any formal coalition - and would probably not be offered one anyway - but their views pretty much align on most things and it would be workable. 48 SNP members plus 1 Labour member against 6 Tories from Scotland adds considerably to the anti-Tory block in Westminster. In short it would be political suicide for an SNP block in Westminster to align with the Tories over Labour in say a vote of confidence. Just wouldn't happen.