They are too busy sharing Britain First posts, rather than bashing gays and foreigners on the streets.
UKIP took all their voters, most likely because the mass anti a immigration vote never was as extreme as Griffin but some saw no other outlet and held their noses.
Have they been outflanked by the rise of UKIP who are drawing away their supporters and campaigners?
Ukip has certainly mopped up most BNP voters although i'm not sure about the degree of campaigners since they apparently kick former BNP members out. Then we have the fact that the BNP actually got Dagenam council but were kicked out a year later because they were unable to organize an orgy in a brothel (this is a danger for Ukip in 2017 when all those seats they won in 2013 come up for grabs again). Finally, i do think that Observatory is largely correct above in that the BNP were national socialists, heavily authoritarian and quite far to the left on tax and spend. Contrast this even to 2010 when Ukip really were just the right of the Tory Party (so largely within the fringes of the current voting consensus), it's a lot easier to vote for a party that won't radically change much beyond immigration than it is to vote for a wholesale radical change. When you consider that the Tories were in power for 18 years, Labour for 13 years and that 2 national referendums have been rejected (one Scottish, one UK), you kind of get the impression that most voters don't want to burn the place down and start again, instead they just want to tinker.
So UKIP is not far right?
Equally there is a fall in far-left parties. Why? Because the democratic state of the UK is awful. Every party has become more centralized, with the Conservatives showing Labour tendencies, and Labour showing Conservative tendencies. Everything has become homogenized, and as a result the fringes are being eradicated.
UKIP is the most far right party I've ever seen.
With Griffin and Robinson gone, the BNP and the EDL are but a shadow of their former selves. Britain First has attracted mild interest, mainly through their manipulative techniques on social media. They have no real physical support. They got 56 votes at the Rochester by-election, and even though they told their supporters to vote UKIP, that is a dismal result. However, Paul Golding, Britain First's leader, has just been arrested for harassment and breaching the 1936 Public Order Act (I've been saying this for a while now). With NF still too far right for most far right wingers, this leaves BNP, EDL, Britain First and NF with very few supporters. As it has been said several times already in this thread, this is mostly UKIP's fault, but party the fault of infighting within these organisations.