Today’s fallacy: Appeal to the People
Argumentum ad populum is a type of informal fallacy,[1][14] specifically a fallacy of relevance,[15][16] and is similar to an argument from authority (argumentum ad verecundiam).[14][4][9] It uses an appeal to the beliefs, tastes, or values of a group of people,[12] stating that because a certain opinion or attitude is held by a majority, or even everyone, it is therefore correct.[12][17]
Appeals to popularity are common in commercial advertising that portrays products as desirable because they are used by many people[9] or associated with popular sentiments[18] instead of communicating the merits of the products themselves.
From Wikipedia
