Myself, I think this is embarrassing rubbish on so many levels.
He says there is there is "more to this than simple economics - there is also the social, the democratic principles at play here".
I don't know anyone who thinks a vote on the terms of exit is about "simple economics", and anyway, his simplistic bid to differentiate between "economics" and "social and democratic principles" just sets up a false dichotomy - yet another face-saving smokescreen.
In any event, the odds of "social unrest" if the decision is reversed are vanishingly small, especially when compared with the social unrest we will see if Brexit is a disaster and the social contract breaks down.