Miscarriage Can Kill … But it Usually Does Not: Evaluating Inconsistency Arguments

Recent publications debate the value of inconsistency arguments. Here, I argue that 'Cause of Death Arguments' - inconsistency arguments that claim miscarriage causes death far more often than induced abortion - are unsound or invalid. 'Miscarriage' ambiguously refers both to intrauterine death, an outcome that does not itself cause death, and preterm delivery, which only sometimes causes death. The referential ambiguity also obscures actions people do take to prevent 'miscarriage.' When using the most plausible versions of each premise, these arguments equivocate. Thus, they cannot prove anything. However, missing the equivocation also causes those responding to Cause of Death Arguments to make unconvincing arguments; they inadvertently make or grant false claims themselves. To avoid such mistakes and expose the merely rhetorical power of Cause of Death Arguments, philosophers should replace 'miscarriage' with disambiguated terms. Doing so should lead people across the abortion debate to finally abandon the Cause of Death Argument.