PR shouldn't be dismissed as a system on the grounds that it allows extremist parties to have some influence. After all, this is only true if people vote for them. Democracy ought to be about ensuring that the people get as close to what they vote for as possible, and this may well include allowing some extremist parties into power. The question then should be why these parties have the support they do. Thankfully the BNP is already on the decline, but their rise is part of a pattern lately of the main parties losing trust and votes. At some point, as the votes become scattered over more and more parties, the FPTP system just becomes broken and undemocratic. Lately we're getting governments that are capable of running the country for years with barely a third of the electorate having supported them; that's likely to remain the best-case scenario for some time yet. Indeed, the vagaries of FPTP could mean that UKIP grabs, say, 20% of the vote share, gets very few MPs (which in itself is a pretty awful result in FPTP), but drives down the threshold of victory to perhaps even less than 30%. How can that be right?