A fallacy, extremely common in politics, where one artificially restricts the range of available options to a false dilemma—typically presenting a limited set of choices as the only possibilities, when others exist. The most famous form is TINA (There Is No Alternative), where a particular policy or system is presented as inevitable because "there's no other choice." Another common form is lesser-evilism, where one is told to support a flawed option because the alternative is supposedly worse—without considering whether other alternatives exist or whether the framing itself is manipulative. "We have to accept this austerity because there's no alternative." "Vote for this corrupt candidate because the other one is even worse." "Support this imperfect policy because the opposition would be catastrophic." The fallacy lies in the arbitrariness of the dilemma: the options presented are treated as exhaustive when they're not, and the criteria for what counts as "worse" are assumed rather than argued. The dilemma is arbitrary because it's constructed to foreclose rather than enable genuine choice.
Example: "She argued that we had to accept the surveillance bill because 'the terrorists win otherwise'—Arbitrary Dilemma Fallacy, presenting a false choice between surveillance and security while ignoring the possibility of security without surveillance."
by Dumu The Void March 17, 2026
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