@layman,
No amount of either reason or so-called "fact" would move these types in the least. They could never agree on any one set of "facts." Any claim of fact that they didn't like would simply be dismissed as false, or otherwise summarily disposed of.
Does that mean that reason and fact are irrelevant?
Well, yes and no.
To these types, yes, totally irrelevant.
To open-minded, reasonable people without an emotional need at stake, then maybe not.