The "cultural diversity" argument is a toughie. Trouble is, our own culture (morris dancing, folk dancing, singing folk songs)has been so much the butt of stupid media comments over the years and we have become so afraid of expressing pride in our own country that this is precisely where the BNP and other fascist groups think of taking a stand.
I want the opportunity to stand up proudly for England (as well as Wales, Scotland and Ireland) without anyone assuming I'm a jingoistic moron. And I've written songs about that and if I found the BNP had attempted to take them on board I would instantly find ways and means to take legal action to stop them.
At WOMEX last year I was appalled to find that the majority of "world music" from the UK sounded like music from other cultures, (because it was - sometimes from people whose heritage was from other cultures but sometimes from musicians who clearly wanted to be from elsewhere)and that there was very little recognition that the UK has its own indigenous cultures. Note the plural.

I think everyone should be proud of their own heritage and background, and that includes us. I don't feel the need to include stories from other cultures when I'm storytelling, especially when the majority of children in our schools don't get exposed to the local heritage at any stage - because we're all trying so hard to be "multicultural" and avoid bias.

So I'm firmly with Folk Against Fascism, very firmly against the BNP and all it stands for (not mad keen on UKIP either, and have never managed to be a Tory) and I don't see a conflict of interests if I stick with performing and studying stories, music, dance and song from these islands. Doesn't make me racist to want to promote my own cultural heritage.