And to repeat a quote from the other BBC link analysing the rise of the BNP:
...they've been joined by a swath of new supporters whose hostility towards immigrants is shaped less by old-fashioned racism than by a new-fangled sense of fear and insecurity. Many are traditional Labour supporters who now feel abandoned by the political mainstream, anxious about their future and distrustful of any figure of authority.
Shouting at people like that and calling them names won't work.