"One thing is sure," replied Dupin, quoting from Chamfort, "that all common knowledge, all traditional opinions, are foolish, for the very reason that the majority agrees with them."
The true side has an edge in logical debates. If we exclusively used logical debates, the true side would be the majority. Since we don't, the majority is often wrong.
The 'problem' with this (which is not a problem, in my opinion) is that logic often leads people to conclusions which make them extremely uncomfortable. I don't think it's so much that people cannot use logic to come to conclusions, but rather that they simply do not like the conclusions that they come to. Today there's widespread cognitive dissonance on a whole array of topics.
This is being compounded by a widespread effort to promote emotion to being something reasonable to consider in discussion and debate. It makes one wonder if this is just a brief blip or if we're beginning a historical repetition. The word pathetic is quite interesting and appropriate. It is derived from pathetikos which is essentially somebody that is sensitive or otherwise subject to emotion. It would be interesting to understand the exact events which evolved the word to its current connotation.
https://en.m.wikipedia.org/wiki/Information_cascade