There's not much to discuss because his position defeats itself. Either his assertion about uncontrolled variables is applicable, in which case the first definition is invalid and therefore needn't be refuted in the first place, or else his assertion is inapplicable and I'm left with the uphill battle of trying to teach remedial logic to a petulant halfwit. I could take him to school but it's neither my responsibility nor worth my time to pick up where his teachers failed, and that assumes he'd listen if I did. Besides, I've dealt with people suffering from shades of insanity before and it was time that would have been better spent staring at a wall.
I'll give him credit for one thing though: I've never seen so many logical fallacies packed into one comment. It's almost like he was trying...almost. https://en.wikipedia.org/wiki/Hanlon's_razor
