I still want to hear m_cozzy's answer.
No, but most of them are incredibly thick/ignorant/uneducated/unfulfilled failures who like to blame someone else for their inadequacies…
"The household income of the typical BNP voter (£27,000 a year) is only slightly below the national median (£29,000) – and not that far below that of a typical Conservative voter (£33,000)." That's from a channel 4 news article.
I personally would suspect that most people who would normally be deemed failures – those institutionalised ot the dole etc. would be Labour voters. I get the impression from their policy that the BNP would take a hard line on these people.