The cognitive bias where someone dismisses another person's views, disagreements, or different perspectives by labeling them as "insane," "delusional," "psychotic," "mentally ill," "schizophrenic," or in need of "therapy" or "help." Rather than engaging with arguments, the pathologizer diagnoses—turning disagreement into symptom, dissent into disease. This bias is epidemic in online discourse, where "touch grass," "seek help," and "you're clearly mentally ill" serve as conversation-enders that require no engagement with actual content. Pathologization bias allows its users to dismiss any challenge to their worldview as not merely wrong but sick—not error but pathology. The target is left defending their sanity rather than their argument, which is exactly the point.
Example: "She presented a well-reasoned critique of his political position. He responded with pathologization bias: 'You're clearly delusional. Have you tried therapy?' Her arguments went unaddressed, her logic unanswered, but now she was also questioning whether she was too invested. The bias had worked: she was defending her mental state instead of her position."
by Abzugal February 19, 2026
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