I'm not ready to go the "mental disorder" route, but I agree that @Gary K reverts to previously held positions even after one logically leads him away from them.A brick wall has a really excellent excuse!
It really is beginning to feel like some sort of mental disorder. It's like no matter how many time you repeat the same exact point, it doesn't stick. There is this, "there is no such thing as objective truth, everything is a matter of opinion" default mentality that assumes that everything anyone says is stated from within that paradigm.
On the other hand, just repeating the same exact point isn't usually effective, unless you bring more evidence/scripture/explanation to the discussion. Yes, at some point you run out of other things to bring to the table. I know that makes you mad, and I know that causes you to start calling people names (because you've run out of logical ammunition), but it's a fact of life/theology/forums, and we all need to learn to control ourselves, always being prepared to make a defense to anyone who asks you for a reason for the hope that is in you; yet do it with gentleness and respect.[1Pe 3:15 ESV]