Two Harms, Not One

The philosophical case against telling children that Santa Claus brings their presents has converged on a short list of harms (damaged trust, trained credulity, manipulation, thwarted gratitude) and on a single question: whether, on balance, the practice is wrong. This paper argues that the single-question format is itself an instance of Binary Bias, the compression of plural and independently varying structure into one sealed quantity, and that the harm of a childhood fiction does not lie on a single axis. It decomposes the harm into two orthogonal axes. The exit axis concerns disproof and is governed by the fiction's falsifiability structure and by collapse cost, modelled as the product of investment, social enforcement, and harshness of reveal; falsifiability is shown to be necessary but not sufficient for exit harm, which is why the tooth fairy breaks harmlessly and Santa does not. The standing axis concerns what the fiction trains while fully believed, independent of disproof. The Santa apparatus is shown to install, at peak belief, an omniscient and fair authority that audits inner disposition and allocates material reward by merit; since the reward in fact tracks parental wealth, the apparatus delivers a just-world certification of the socioeconomic distribution as moral desert, producing self-justification in advantaged children and self-indictment in disadvantaged ones, the latter shown to be the engineered rather than incidental outcome. The two axes generate a four-quadrant structure whose severities are asymmetric: the worst cell is the unfalsifiable fiction with toxic standing content, which deforms permanently because it never ruptures, a cell the disproof-centred debate cannot locate. The framework is shown to be separable from advocacy by its capacity to condemn a sympathetic practice run badly and absolve a maligned one run well. A worked alternative in the ideal cell is scored and not endorsed; a structural isomorphism to folk theology, and the empirical tests of the standing and transfer claims, are deferred to companion work.