[presently no screen name]

It's the old - "IF you can't convince them, confuse them".

If it's not a word game, it's a 'you don't understand', 'you don't know' or 'that's a lie' or when it really gets to them it's 'reading the mind'.

Defending the indefensible isn't easy when TRUTH is presented - and living the indefensible has everlasting consequences.

[count-your-change]

“Have you quit beating your wife yet?” works well too. Or some ‘Doublethink’ construct that allows the the acceptance of two contradictory and opposing views, believing both to be equally true.