Interesting that Wee Nic's appeals to the disaster of Boris are coming to fruition, and now 54% of Scots now was indy if there Boris is PM (crossover with other thread).
Thing is, despite his words, even if he becomes PM, he will find out as May did before him that Brexit is more difficult to achieve than he thought.
Once Brexit fails again on the 31st Oct he will fall on his sword, and there will have to be either a referendum, or a GE. Either way it will lead to his downfall.
He wont be in office long enough to wreck anything...
(maybe some wishful thinking, but I think Union is safe for now)