Mike Konczal and Jonathan Chait both have good pieces on “You didn’t build that”, the Obama statement that, deliberately misinterpreted, has dominated right-wing discourse these past few days. Go read. But I think both of them miss a couple of tricks.

The first is that both in effect shrug their shoulders over the fact that for several days running the central theme of the Romney campaign has rested on a complete lie. I understand; going on about the dishonesty can get boring. But we should step back often to look at this remarkable spectacle. I really don’t think there’s been anything like this in American political history: a presidential campaign, with a pretty good chance of winning, that is based entirely on cynical lies about what the sitting president has said. No, Obama hasn’t apologized for America; no, he hasn’t denigrated achievement. Yet take away those claims, and there’s nothing left in Romney’s rhetoric.

The other thing that I think needs clarification is that it’s wrong to think of conservatives as having a single argument for their preferred policies. What they offer instead is more like an onion, with layers inside layers; every time you strip away one excuse there’s another one inside.

Thus someone like Paul Ryan starts by claiming to be a deficit hawk. Push him really hard, however, on why in that case he advocates big tax cuts, and he’ll shift to arguing that big government (as opposed to not-paid-for government) is the real problem. (That’s also what happened in my UK debate on Newsnight.) But if you push hard on that, it turns out that there’s yet another layer: the claim that things like taxing the rich to help pay for social insurance are immoral, because people have a right to keep the wealth they created — which is why suggesting that no plutocrat is an island is heresy.

This onion structure is why you should never believe reasonable-sounding conservatives who say that you’re attacking a straw man, that “nobody believes” that wealth creators owe nothing to society. Oh yes they do — it’s usually hidden inside a couple of more socially acceptable excuses, but at their core Ryan and people like him believe that they’re characters in Atlas Shrugged.

By the way, who built the roads in Galt’s Gulch?