There is no other way of putting this. Labour might well win the next election, but a Brexit Britain will hand the reigns of power back to the Conservative party within a one parliament
Here is why.
Gayle and Gardiner even agreed in this on the Ch4 special on Monday 5th November.
Both felt compelled to go ahead with it because people voted for it.
While ideologically the Conservatives have always been there, Labour own Eurosceptisism was often a minority opinion.
And so Brexit will happen as the front bench has developed this I'll advices plan, against the wishes of its membership, to try an turn a disastrous Tory Brexit into a golden dawn of a socialist Lexit.
At least this is what some Lexiters think.
But on Brexit he is miscalculating.
Both politically and economically.
For Labour policies to work, the public finances need a fresh cash injection of around £125 billion a year. This is even before contemplating additional borrowing.
That is roughly ten time the EU membership by the way
This is not going to directly improve the economy. But at least would make living standards tolerable for many.
This is a huge shift in fiscal policy. One that even McDonnel knows is impossible. Some of his more radical supporters think this will come from corporations alone.
Brexit will not make things easier. In fact a reduction of GDP anything from 2% to 8% for at least 15 years, will mean having to find £150 to £250 billion instead.
They would be trapped between crippling the finances or disappointing their electorate.
The Tories would simply get back in.
No ifs no buts.
Labour would take all the blame for Brexit's economic disaster, like they did for the 2009 financial crisis.
Any Corbynomics experiment would be very short lived.