Arbitrary Analogy Fallacy

A fallacy where one dismisses an argument, claim, or position by comparing it arbitrarily to something universally derided—Flat Earth theory, anti-vaxxers, tinfoil hats, or other culturally recognized symbols of irrationality—without establishing a substantive logical connection. The fallacy lies in the arbitrariness of the comparison: rather than engaging with the actual argument, the speaker simply invokes a stigmatized label, relying on cultural disgust to do the work of refutation. "That's just like Flat Earthers." "You sound like an anti-vaxxer." "Next you'll be wearing a tinfoil hat." The comparison is arbitrary because the logical relationship between the target argument and the stigmatized position is never demonstrated—they're just associated through rhetorical gesture. This fallacy is particularly powerful because it bypasses reasoning entirely, triggering emotional rejection rather than intellectual engagement. It's the lazy debater's way of dismissing without thinking.

Example: "He raised legitimate questions about media consolidation, and she responded with 'oh, so you're a conspiracy theorist now?'—Arbitrary Analogy Fallacy, using the stigma of conspiracy to avoid engaging with actual concerns."

Arbitrary Analogy Fallacy by Dumu The Void March 17, 2026