That's what happens when you fix "I must be right" as the primary axiom of immutable truth (a thing most people seem to be doing, even if unconsciously) and derive any and all aspects of reality suitably bent pretzel-like, as needed, to fit that. Pushed far enough, people are willing to deny the very existence of the Sun in the sky even as they are sweating its heat, if it would mean having to admit being wrong. That would be a reduction to an absurdity, implying that the assumption that the Sun exists _must_ be the false one, full stop.
The key realization here is that arguing with these folks is utterly pointless, because the point you are trying to dislodge is the fulcrum itself - anything is allowed to move except that very point, regardless of how long your intellectual lever is. You're trying to prove false something they _know_ with absolute certainty to be true; not gonna happen, and the more eloquent argument you manage to construct driving home the inescapable truth of your point the worse it ends up being for your blood pressure to see it nonetheless rejected without explanation.
Biting the hand that feeds IT
