Jeremy Duns accuses Owen Jones of some factual errors. Insofar as he's right, this actually strengthen the substance of Owen's big contention - that the Establishment is a self-regarding clique.

Owen's errors are not decisive ones; the claims he has got wrong are not load-bearing ones. Nobody is going to think "So, the DESO doesn't exist any more. This shows that there's no such thing as crony capitalism." In pointing out his errors, Jeremy is not so much defending the Establishment as attacking Owen.

Let's grant, for the sake of argument, that he's right - that Owen is using wrong or misleading claims, possibly deliberately, to stir up hatred. (I stress that I don't actually believe this. I just want to see where the worst-case characterisation of Owen leads us.) If this is so, all Jeremy has done is show that Owen is well-qualified to enter the House of Lords.

And what's more, he hardly unique in being careless with facts. The Establishment itself lies about the economy and welfare state, ignores key facts about migration, and rests for its support in part upon public ignorance. Being stupid little shits is a good career move in the Establishment - just look at Richard Littlejohn, Toby Young or James Delingtwat. It would be odd, therefore, to single out Owen.

And let's just ask. If Owen is so bad, why did one of the UK's biggest publishers commission him to write a book?

The answer lies on his Twitter page. He's got 222,000 followers. That's a big market. He's got a book deal for the same reason Russell Brand has - not because of his intellect or command of his subject but because he sells.

Which brings me to the point. If you believe the worst about Owen, then it corroborates those of us who fear that we live not in a meritocracy but in a celebocracy, in which fame - however ill-merited - begets more wealth and acclaim and in which intellect and honesty are unimportant. But this self-perpetuating, closed elitism and post-truth politics is exactly how some of us would characterize the Establishment.