I would be more interested to know how many current UKIP supporters would traditionally have identified as Labour, and how this would affect the balance of leave/remain if these voters were added to the current labour supporters.
Don't forget the complete wipe-out of the Liberal Democrats. The majority of whom, I guess, will now be Labour voters, cancelling out the ex-Labour voters who have defected to UKIP.
I thought we were subjected to an analysis post 2015 GE,
that showed the masterful way Cameron targetted LibDem/Tory marginals,
(Cornwall/Devon, Vince Cable's seat),
as these were seen as easier to convert than (some) Labour/Tory marginals?
Don't forget the complete wipe-out of the Liberal Democrats. The majority of whom, I guess, will now be Labour voters, cancelling out the ex-Labour voters who have defected to UKIP.