UKIP and bias

Odd thought: many people have noticed that the BBC and others give undue bias to UKIP over the Greens. Something odd is going on, and people have often suggested a UKIP mole. But I wonder whether it's actually someone from the Labour Party. UKIP is likely to split the Tory vote; the Greens are likely to take people from the centre-left. So centre-left voters are unlikely to be distracted by UKIP and unlikely to hear from the Greens, putting Labour in a good position to win the election. (Of course there are those who think UKIP is a centre-left party, but then they'll learn the truth when they hear them speak.)