When Nick Griffin was pelted with eggs outside Parliament this week, the protest divided public opinion over whether it was a legitimate expression of anger or a foolhardy stunt that handed unwarranted publicity to the British National Party.

It has also widened a rift in the anti-fascist movement over how to combat the rise of the far-right party.

United Against Fascism (UAF) is planning a series of physical demonstrations over the coming months based on Tuesday’s confrontation, which forced Mr Griffin, the BNP leader and newly elected MEP, to abandon his victory press conference. The approach has frustrated seasoned anti-BNP campaigners, who believe that the stunt allowed Mr Griffin to portray himself as a martyr.

There were violent tussles between the protesters and supporters of Mr Griffin and Andrew Brons, who won the BNP’s second European seat in Yorkshire and the Humber region, and police are investigating two allegations of common assault.

UAF, which was set up five years ago as an umbrella organisation for anti-racism groups and trade unions, says that it will picket Mr Griffin wherever he goes. It accepts that there is potential for further violence but insists that the action is necessary to combat the BNP.

Searchlight, a separate organisation that has campaigned against the BNP and its predecessors since the 1960s, is cautious about such protests and says that a more “constructive” approach is needed. Searchlight initially joined UAF when it was created but broke away following policy differences. This week it launched a widespread digital media initiative called Not In My Name. The organisation is being advised by Blue State Digital, the internet strategy firm responsible for President Obama’s winning US campaign, and plans a variety of online initiatives to raise awareness and funds.

This weekend an appeal video featuring various celebrities will be posted online to urge the public to donate. More than 84,500 people have already signed up to its database, making it bigger than those of any of the mainstream political parties.

The Royal British Legion yesterday accused Mr Griffin of trying to politicise “one of the nation’s most beloved symbols” after he repeatedly wore a red poppy during the European election campaign. The charity is demanding that Mr Griffin stop wearing the poppy, after private appeals to his “sense of honour” were ignored.

In an open letter to The Guardian, the charity wrote: “True valour deserves respect regardless of a person’s ethnic origin . . . Stop it, Mr Griffin.”

Campaigners are also organising a petition to take to the European Parliament next month, saying that while the BNP has won seats, it does not represent Britain. The number of signatures had exceeded 56,000 by Wednesday, only two days after it was begun.

Campaigners aim to surpass 132,094, signatures — the number of votes that Mr Griffin attracted in the North West region.

Searchlight is hoping to raise enough money to wage its biggest campaign against the BNP, from advertisements on buses to leaflets aimed at areas where voters are BNP-friendly.

Nick Lowles, the campaign coordinator, said it was a positive way to express discontent. “We need to harness people’s anger in a constructive way, rather than throwing eggs at the BNP,” he said.

However, Anindya Bhattacharyya, a spokesman for UAF, claimed that the strategy was not adequate to defeat the BNP. “If fascists simply organised on the internet then it would be fine. But they foment their race hatred on to the streets. That’s where we have to stand up to them,” he said.

UAF is planning an emergency national conference in Manchester on July 18 and aims to picket events such as the BNP’s annual rally in August.

Mr Bhattacharyya defended the tactics displayed on Tuesday. He said: “I think the far greater danger is that he [Mr Griffin] becomes legitimised.”

Harrogate College is under pressure to justify its decision to employ Mr Brons as a politics lecturer. Mr Brons, 61, a former chairman of the National Front, has worked at the college since 1970. He confirmed to The Times that there was a “tentative agreement” for him to return in September but said that now he was an MEP he would not take up the offer. In 1984 the then principal of the college was a character witness in court for Mr Brons. He was convicted of behaviour likely to cause a breach of the peace after he was arrested while selling National Front newspapers.

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