A thought provoking article here from the generally excellent OurKingdom blog.
Many voters are 'against immigration' and against foreign aid (they say things to me on the doorstep along the lines of: "We should take care of our own; that's enough"); and yet they insist that they are not racists. This includes many Tories and the whole of UKIP - and many ordinary voters.
I've tried to introduce the idea of national minorities into the debate which has followed. Hope some take note.