The argument pursued by moderates against Corbyn is that he appeals only to that tiny fraction of the electorate who voted him into power. Antediluvian Labour traditionalism, they might say, will crash and burn with the general public. Yet by attempting to grab the steering wheel so frequently, they are fatally undermining their critique of Corbyn’s driving. If they are so confident of the coming crash, then they should let Corbyn steer into oncoming traffic without distraction or assistance. They are either too slow to appreciate the harm that they are doing to their own argument and the relationship they enjoy with labour members, or they are contemplating another outcome.