"I can't see the Far Right becoming that enamoured of Child Ballads, Loreena McKennit, Enya, Morris Dancing, the bodhran and other pleasant stuff like that. But maybe I'm wrong. Perhaps they are intent on carving out some lebensraum in the heretofore Elysian fields of folk music."

Well yeah - they are, actually. And of your examples above, it's the English ones they're most interested in, because they are intent on aligning "Englishness" with their racist agenda. They have their own morris side. There are BNP activists in my local morris side, as it happens. And, if you have a look at the link I posted, you'll se ethat they actively encourage their campaigners to infiltrate traditional events.