Fallacy of the hive mind – 1.) Inferring that someone who makes a comment which aligns with a consensus political opinion or movement on social media possesses the same deep, ingrained, singular, core principles or characteristics as that group or movement.  2.) Erroneously clumping people into a spuriously-named, demographically or sociologically unofficial group because they agree with, voice their opinion regarding or argue in favor of a consensus opinion which is temporarily influential, on social media or elsewhere.