I had a dream last night that the BNP won?

It means you are rightly worried about the prospect of racists in power. The press coverage of the very minor gains of the BNP has blown their significance out of all proportion, and can leave people in fear that they have some sort of political power or clout, so your dream is understandable. But the truth is they failed - Griffin had confidently predicted they would win at least five seats, they managed two. They got less votes than the green party. The BNP will never be anything more than an irritation and an embarrment, and a minor one at that. Rest ured!