Tbh I think the BNP comparison ceased to be useful a few years ago. These days UKIP are bigger, better organised and better funded than the BNP ever were, and they appeal to a wider cross-section of people as well. It may be that they will come apart in the next couple of years, but I doubt it. It's true that the EU referendum is important for them and if the result is a resounding 'stay in' then that might well damage them badly, but any other result is likely to work in their favour. After all, the Scottish independence referendum should indicate that a close referendum result needn't settle an issue one way or t'other.'