That troll just won't let go. He keeps making the same arguments, which have already been proven invalid, over and over in the hope that someone will fall for it. He's not willing to let go of his worldview, so every time he gets challenged on something he has said, he just makes up some other spin that is equally invalid. He's like a dog chasing his tail. He never catches it, but he keeps trying anyway. It's a waste of time and energy to try to have a discussion with someone like this. He's not open to the possibility of being wrong, because he has convinced himself that he's right about everything. The only way to deal with him is to ignore him completely and move on with your life.