One of the axioms utilized by H.L. Mencken in analyzing politics in the United States stated that Americans were unable to grasp arguments on their face and instead needed them recast in pure Manichean terms, with the most repellent of devils on one side and the purest of angels on the other.
I’ve seen this axiom come into play on various debates including right here. It is disheartening to see this logical fallacy lent credulity. But it is human nature, and moderators are drawn from the cloth of human nature as are we all.