This is incorrect. It takes very few people to start an information cascade. The wrong side can win just as easily as the right one.
> The wrong side can win, but not just as easily
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.
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.