Talk about White Flight...
Yeah, it's hilariously obvious really. Equally obvious is that the media have yet to pick up on it...
I think the non-print media have, but whenever the tabloids go for it there's the inevitable lefty backlash. Clearly from that map - insofar as electoral statistics prove anything - there has been a movement towards the outer fringes/Essex/Kent, but that in itself does not provide suggestions for the BNP vote.
However the fact that the percentages are so similar after a generation seems to show not so much of a rise as we would think from the MEP results....