I realise wikipedia isn't the greatest source of information, but:
And then lying about it...The BNP, its former leaders and present leader, Nick Griffin, have promoted anti-Semitism and Holocaust denial in the past. In 1996, writing in his own publication, The Rune, Griffin stated that:
“ I am well aware that orthodox opinion is that six million Jews were gassed and cremated or turned into soup and lampshades. I have reached the conclusion that the 'extermination' tale is a mixture of Allied wartime propaganda, extremely profitable lie, and latter witch-hysteria. ”
Anti-Islamic:The following year, during a Cook Report documentary he stated:
“ There is no doubt that hundreds, probably thousands of Jews were shot to death in Eastern Europe, because they were rightly or wrongly seen as communists or potential partisan supporters. That was awful. But this nonsense about gas chambers is exposed as a total lie.
Is against interracial relationships:The party has positioned itself against Islam, which Griffin has repeatedly called "wicked and vicious". In the wake of the 7 July 2005 London bombings, the BNP released leaflets featuring images of the bombed Route 30 bus and the slogan "Maybe now it's time to start listening to the BNP." This move was criticised by the conservative Daily Mail as playing on people's emotions and grief following a horrendous attack.
Is manipulative and very deceptive:Apparently connected to the BNP's opposition to interracial relationships, regional organiser Kenneth Francis, of Newham, East London, was expelled from the BNP in April 2002 after it was revealed that his girlfriend was an Ecuadorian asylum seeker. 
After the Jyllands-Posten Muhammad cartoons controversy, the BNP republished one of the cartoons of Muhammad on a leaflet, accompanied by a photo of Muslim demonstrators holding placards bearing anti-British slogans and a "Which one do YOU find offensive?" caption.
Needs more money and support than the British are willing to give:On 21 December 2006, The Guardian revealed that one of its journalists, Ian Cobain, had worked undercover in the BNP for seven months, and had become the party's central London organiser. Among the accusations made by the paper was that the BNP used "techniques of secrecy and deception… in its attempt to conceal its activities and intentions from the public". It asserted that the BNP operated with a "network of false identities" and organised rendezvous points to allow members to be directed to "clandestine meetings" elsewhere. Members of the party were directed to avoid "any racist or anti-semitic language in public". Cobain also claimed that the membership in central London had expanded beyond the party's traditional range, now including "dozens of company directors, computing entrepreneurs, bankers and estate agents, and a handful of teachers".
Is for corporal and capital punishment:The BNP was investigated by the Electoral Commission on 12 April 2007 after The Guardian revealed that senior figures in the BNP had set up a front organisation in an attempt to raise money from sympathisers in the United States.
Is the equivalent to a British Nazi party:The BNP proposes to reintroduce corporal punishment, and to make capital punishment available for paedophiles, terrorists and murderers. In addition to increasing military defence spending, the BNP plans to reintroduce compulsory national service. The BNP proposes that citizens should keep a rifle and ammunition in their homes. It proposes "to end the conflict in Ireland by welcoming Eire [sic] as well as Ulster as equal partners in a federation of the nations of the British Isles".
Is anti-democratic:At its founding, the BNP was explicitly racist. In October 1990, the BNP was described by the European Parliament's committee on racism and xenophobia as an "openly Nazi party … whose leadership have serious criminal convictions [sic]". When asked in 1993 if the BNP was racist, its deputy leader Richard Edmonds said, "We are 100 per cent racist, yes". Founder John Tyndall proclaimed that "Mein Kampf is my bible". When Nick Griffin became chairman in 1999, the party began to change its stance with regard to racial issues. Griffin claims to have repudiated racism, instead espousing what he calls "ethno-nationalism". He claims that his core ideology is "concern for the well-being of the English, Scottish, Welsh and Irish ethnic nations that compose the United Kingdom".
The BNP requires that all members must be members of the "Indigenous Caucasian" racial group. The party does not regard non-white people as being ethnically British, even if they have been born in the UK and are naturalised British citizens. Instead, Griffin has stated that "non-Europeans who stay", while protected by British law, "will be regarded as permanent guests".
The party has stated that it does not consider the Jewish, Hindu or Sikh religions to have a significantly detrimental or threatening effect, having several members with Jewish ancestry, but does not accept practising Sikhs or Hindus as culturally or ethnically British. In pursuit of the policy, the BNP has previously worked with extremist Hindu and Sikh groups opposing Islam, and actively tried to win Jewish votes.
The BNP is opposed to mixed-race relationships on the stated ground that racial differences must be preserved; the party said that "when whites take partners from other ethnic groups, a white family line that stretches back into deep pre-history is destroyed." Nick Griffin stated: "… while the BNP is not racist, it must not become multi-racist either. Our fundamental determination to secure a future for white children is restated, and an area of uncertainty is addressed and a position which is both principled and politically realistic is firmly established. We don't hate anyone, especially the mixed race children who are the most tragic victims of enforced multi-racism, but that does not mean that we accept miscegenation as moral or normal. We do not and we never will".
Is Homophobic:The party states that "The BNP has moved on in recent years, casting off the leg-irons of conspiracy theories and the thinly veiled anti-semitism which has held this party back for two decades. The real enemies of the British people are home grown Anglo-Saxon Celtic liberal-leftists ... and the Crescent Horde – the endless wave of Islamics who are flocking to our shores to bring our island nations into the embrace of their barbaric desert religion". It has described this as the "islamification" of Great Britain.
The BNP are a bunch of thugs:The BNP states that homosexuality in private should be tolerated but believes that it "should not be promoted or encouraged". The BNP opposed the introduction of civil partnerships in the United Kingdom and wishes to ban what it perceives as the promotion of homosexuality in schools and the media; and believes that homosexuality should be returned "to the closet".
The BNP was criticised over a list on their website titled "Liars, buggers and thieves" which grouped several gay politicians in with convicted murderers, rapists and paedophiles. The compiler of the list, BNP local councillor for Redbridge, Julian Leppert defended it and said that the reason why gay MPs were included was because "it fits in with the headline, the bugger part, I guess" and stated that the BNP are "a family party with family values".
Mark Collett, former chairman of the Young BNP and current Director of Publicity, described homosexuals as "AIDS Monkeys", "bum bandits" and "faggots" and said the idea of homosexuality was a "sickening thought". Articles published in the Sunday Times and Daily Mail have alleged that Nick Griffin has been involved in homosexual relationships with other BNP members, although he vehemently denies it.
Overall, it's a bad party, and I'm actually ashamed that any human being can be so wrong on so many levels, let alone an entire group.In the past, Nick Griffin has defended the threat of violence in furthering the party's aims. After the BNP won its first council seat in 1993, he wrote: "The electors of Millwall did not back a postmodernist rightist party, but what they perceived to be a strong, disciplined organisation with the ability to back up its slogan 'Defend Rights for Whites' with well-directed boots and fists. When the crunch comes, power is the product of force and will, not of rational debate." In 1997, believing he was addressing members of the French Front National, he said: It is more important to control the streets of a city than its council chambers." In January 1986, when Griffin was Deputy Chair of the NF, he advised his audience at an anti-IRA rally to use the "traditional British methods of the brick, the boot and the fist."
A BBC Panorama programme reported on a number of BNP members who have had criminal convictions, some racially motivated. The BBC's list is extensive. Some of the more notable convictions include:
* In 1998, Nick Griffin was convicted of violating section 19 of the Public Order Act 1986, relating to incitement to racial hatred. He received a nine-month prison sentence, suspended for two years, and was fined £2,300.
* Kevin Scott, the BNP's North East regional organiser, has two convictions for assault and using threatening words and behaviour.
* Joe Owens, now expelled but previously a BNP candidate in Merseyside and former bodyguard to Nick Griffin, has served eight months in prison for sending razor blades in the post to Jewish people and another term for carrying CS gas and knuckledusters.
* Tony Wentworth, former BNP student organiser, was convicted alongside Mr Owens for assaulting demonstrators at an anti-BNP event in 2003.
* Colin Smith, BNP South East London organiser has 17 convictions for burglary, theft, stealing cars, possession of drugs and assaulting a police officer.