Or, depending on who you conversed with at the forum... How do we disprove the null hypothesis that this is a part of human nature and there have always been a

Or, depending on who you conversed with at the forum... How do we disprove the null hypothesis that this is a part of human nature and there have always been and will always be people that state their opinions as fact to be more persuasive, and that those voices tend to dominate over the more tempered ones?