No structural feature of classical sum-utilitarianism permits a lexical or threshold-based override that would block this calculation without abandoning the theory's foundational commitments.

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Classical sum-utilitarianism(as the particular form of utilitarianism being analyzed): A specific version of utilitarianism that adds up the total happiness in a situation and says we should maximize that total sum, rather than focusing on averages or other measures.
Foundational commitments(as used in philosophy of mathematics): The basic assumptions and principles that a mathematical or logical system relies on at its core—the 'ground floor' beliefs it's built upon.
Lexical override(as a potential exception mechanism that utilitarianism lacks): A priority rule that ranks certain values or principles ahead of others, so some concerns get decided first before doing the main calculation.
Structural feature(as what the statement claims configuration-space separation is): A fundamental, built-in aspect of how something works—as opposed to something that just happens to occur by chance.

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