Counterpoint to the idealists? Just questioning, because I'd consider the first two to be hardcore ideologues, and the 3rd not very far behind. I don't intend that as a pejorative, just a description: the arguments of ESM, for example, are strongly colored by his vision of the ideal world being one that adhered to his particular ESM-branded of school of libertarianism. And I think "pragmatist" was something of a dirty word to the first two.