This is a catch-22, because if more Feiglin supporters were to vote Ichud LEumi, then KAdima surely would have won the last election. Granted, Likud is almost as bad as Kadima, but not quite as bad.
Then again, it is always the fake right wing that makes these deals, so maybe we'd be better off with a weak emaciated Kadima in power, as Likud is much better in opposition when it pretends to be a real right-wing party. Then, when it comes into power, it always veers back left.