I will have to listen to it again. From what I recall he was basically arguing against the doctrine of predestined election and that if you fell away from Christ, you never were one of the elect anyway.
If any Christian said that to him, they were wrong for doing so. They can't make that kind of judgement.
As far as the big bang argument is concerned, I too have respect for scientific method. But there are incredible problems with the big bang that atheists seem to shrug off. They can't explain how nothing caused something. That moment of creation...they can't explain it in ANY way. So to me it makes more sense to belive in an intelligence that caused the effect, than to believe the effect was caused by nothing.
Like I said, I'll have to watch the youtube video again. I just remember that he was using the same rehashed arguments that I've heard from other atheists. They like to say that anyone that believes in God is not rational and are not critical thinkers.
We are not a bunch of extremely educated professors on this site. We are a bunch of ex cultists that are trying to figure things out after being lied to for years. So why pretend? But there are thousands of well educated scientists that believe in Intelligent Design, and also believe in the scientific method. So saying that only those that are rational accept that there is no God or cause to the universe as we know it are going against actual data.
There is a reason why we have not become an atheistic society. There are plenty of good reasons of believing in God. And that is why there will always be something to talk about between atheists and the religious.