What will Unite do, if their own choice for PM tells them to get lost? Refuse to pay the £6.8 million they give to the party? No. Labour out of power is no use to them. And if Milliband wins the election, he'll ignore them. And they'll go on trying to ensure their candidates are selected in seats.
By their thinking, the likes of Harold Wilson (a brilliant academic), Clem Attlee, even, perhaps, Nye Bevin, should never have been selected. It's dinosaur politics.
Don't get "the out of touch" either. Their own man is the son of a Marxist academic and expensively educated and has never done a day's work on a shop floor in his life. Cameron is the same, and to be regretted. But class and education does not, in itself, make you out of touch. Harold MacMillan had both, but had seen life and poverty close up in his early days in politics, rich though he himself was. In spite of his toff manner and accoutrements he understood people