As much as I would love to jump in and put my fist down... you know what I mean, this thread is a Q&A thread. It says so right in the title. What's a Q&A? Simply put, it is an ask-your-question and answer-your-question thread. Not a place to go into a deep debate.
Any time he gets backed into a corner, he claims that the argument has become "circular", which it really hasn't.
May be you haven't dealt with PG that much before, but I assure you this is his regular behavior. I've learned to ignore him most of the time, so... waste your time if you want.