I've seen quite a few errors which are common amongst atheists, which you seem to be (I say this with no ill intent). First, theism is not a position of absolute certainty. Theism merely states that, given the current data, it's more likely than not that God exists. Thus, theism is the most rational worldview to adhere to. How strongly you adhere to it is correlated with how strongly you believe the evidence for it is.
It is not rational, by definition,* to assume the supernatural. And under any interpretation of "current data" the Christian god is no more likely to exist than a three headed unicorn with lasers coming out its butt.
That's not a material point. Three headed unicorn with laser coming out of its butt theology is nonexistent. To argue the premise that Judea/Christianity or any other major religion is flawed because something else is flawed is idiotic.
Second, in the absence of superior evidence either for or against a claim, the reasonable position is neutrality. Thus, the "correct" default position in the question of existence is agnosticism.
Save that belief in the supernatural requires accepting the occurrence of that which all our other experience tells us is impossible.
All our other experiences don't tell us that it is impossible. Quite the opposite, they tell us it is. In fact, I don't see how it can be any other way.
Third, the claim that God does not exist--the actual claim of atheists--is a positive claim about the nature of reality. Thus, it requires positive supporting evidence if it's to be taken seriously.
It is normally presented as a supposition: "I do not believe any gods exist". Or, more lexicologically, "I do not believe", or "I reject", "theism".
Doesn't matter, he's right. The claim that God does not exist is a positive claim about the nature of reality and requires positive supporting evidence if it's to be taken seriously.
Fourth, and final, atheism's denial of the existence of God logically entails that something other than God is at the root of existence. Atheists need to work up the courage to explain what this something is, and present their evidential arguments for why they believe it true.
You claim your god always existed. We claim the universe always existed.
It is the only solution to the first cause.
Personally, I've found nothing intellectually stimulating in the atheist movement.
Yet you find such stimulation in 2,000 year old fantasy stories?
I find wisdom and knowledge in them.
What I've found has been a lot of semantical games and burden of proof dodging, as well as a belief system which, when followed to its logical conclusion, undermines all of rational thought and science.
You started this diatribe with the nonsensical contention that an acceptance of your god was a rational conclusion. That doesn't really speak all that well for your judgement. Could we please have the Reader's Digest explanation as to how atheism undermines all rational thought and science?
He more than covered this in his four points. His literal rebuttal would be to re-paste his original four points.
I cannot in good faith consider atheism anything other than either a bankrupt academic trend, or, for the more militant atheists, a severe psychological illness.
The claim that God does not exist is a positive claim about the nature of reality and requires positive supporting evidence if it's to be taken seriously.That's awfully nice of you. I consider a belief in god(s) to be a delusion stemming from a failure to very justifiably question authority.