The ethical and practical error of believing that the will of the numerical majority (50%+1) should always prevail, not just in elections, but in determining what is fair, true, or just in a society. It is the operational engine of "tyranny of the majority," where minority rights, interests, and truths are sacrificed on the altar of popular sentiment. This bias confuses quantity with quality and power with justice.
Example: A town votes to ban the construction of a mosque because the majority are Christian and uncomfortable with it. Defenders say, "It's the will of the people." This Majoritarian Bias uses the majority's cultural preference to justify religious discrimination, treating democracy as a weapon rather than a protection.
The hypocritical practice of appealing to majority rule to legitimize one's own preferred policies, while crying foul and appealing to minority or individual rights when the majority opposes something one holds dear. It's the tactical, unprincipled use of the "majority" as a shield and a sword, depending entirely on which way the wind is blowing.
Example: A group argues that prayer in public schools should be allowed because "the majority in this community are Christian." Yet, the same group opposes community consensus when the majority supports a tax for LGBTQ+ youth services, arguing instead for "individual religious freedom." This is Majoritarian Picking.