The question "does god exist?" is neutral, but in debating this question atheist will often assert that "no" is the default position as a matter of bruit fact. Additionally, if the theist challenges the atheist to present positive arguments for atheism, the "no" claimed to be the default, is contradicted by arguing that no position has been taken (i.e. "lack of belief").
Please, in debate the affirmative is almost always the side carrying the burden of proof. The negative has the burden of rebuttal. When arguing over whether something exists or not, it also makes sense to place the burden on the affirmative, because if something exists there should expect there to be some positive evidence of existence. But what is the positive evidence for the non existence of something?
No, it make perfect sense to look at it as the burden of proof is on the theist to present the evidence for God's existence. That doesn't mean the atheiast has no burden, but his burden is to rebut the evidence offered by the theist, not present evidence of their own, because as I said there just isn't any positive evidence for the non existence of something.
If a theist allows the atheist to set the debate ground rules using these two contradictory claims, it effectively sets the debate ground rules such that the atheist need only show that each of the theists arguments are not irrefutable. Clearly, the end effect is an attempt to win debate using contrivances rather than logic and evidence to support the position. In my opinion, this is an implicit confession that the case for atheism is abysmal.
No, there's no contrivance, it's just the way rational debate should work.
So, how can theists get atheists to debate without trying to rig the game?
The atheist isn't rigging the game. This is the way the game is supposed to work. Trying to force the atheist to provide positive evidence for a negative claim is just a fallacious attempt to shift the burden of proof.
One way is to frame the question differently, as with asking "Does the evidence better fit atheism or theism? IMO, this would expose the faith-based nature of atheism would be exposed immediately if the atheist were to argue, as they do now, that evidence for atheism isn't needed. In contrast, the theist would be presenting a number of convincing apologetic arguments. Isn't this
-Keith
Sure, does the evidence better fit atheism than theism. I'd say the atheist wins that one hands down, except that the theist is probably going to just keep moving the goal posts. I mean every time the atheist point s out that such and such a piece of evidence is not what one would expect to find under theism, we are told that we don't understand theism...and of course there are many brands of theism with different assumptions, so....or some ad hoc rationalization is offered. The best example of this is with PofE. The atheist points out that we should no expect to find evil in a world created by an all-powerful and all-good being, bit we find evil in the world, so... So, it's argued that we can't know the totality of God's plan and so it could be that fro every evil allowed a greater good will come that justifies it. But, is there any reason to think this other than that it would save the God hypothesis? No, so it's just an ad hoc rationalization. And IMO A LOT of the so called "convincing apologetic arguments" are similarly ad hoc, and/or logically fallacious.
So, stop with the trying to shift the burden of proof already. If you want other people to believe that the universe is the creation of a mysterious unseen, extra dimensional person. Sorry, the burden of proof IS on you.