I have to say that UKIP are a good thing in the respect that less people will now vote Tory. And as they've no real chance of getting into power (at a general election), it'll just split the Tory vote in marginal seats. Less chance of them getting a majority. So thats a win/win really
No wonder Dave is doing his frankly weird God/anti-immigration/EU referendum dance though. Imagine being Dave. Faced not only with the realisation that you're haemorrhaging votes from your natural constituency, but the true realisation of what a truly odd, nasty bunch of racist, homophobic bigots your core support really is. And now you're going to have to pander to them shamelessly to stand any chance of winning an election.
I think he'd actually managed to convince himself before the last election, with all that metropolitan, husky/hoody-hugging 'detoxifying the tory brand' crap he spouted, that the rump of the Tory Party weren't as small-minded, vile and thoroughly unpleasant as they actually are. No illusions any more though, eh Dave?