Matt Dillahunty has clarified the atheist position with the following gumball analogy, which I have paraphrased:
Suppose there exists a gumball machine, and we don't know how many gumballs are inside it. If you told me that there were an even number of gumballs in the machine, then I would reject your assertion. Your assertion is rejected on the grounds of insufficient evidence, and I am not claiming that there is an odd number of gumballs. The fact of the matter is that we don't know and can't know how many gumballs there are, and so any positive assertion is unreasonable.
This is why most atheists are the "lack of belief" type of atheist. Some of these atheists might positively assert that Jehovah cannot exist, but this is usually because of the fact that Jehovah is often saddled with self-contradictory properties. Make Jehovah's properties self-consistent, and most atheists will not positively assert that he does not exist.
Those atheists who do assert that no gods exist are (hopefully) operating under the null hypothesis. For example, we might say that adding racing stripes to a vehicle will not make it go faster. This is not a declaration that experiments have been performed to conclude this, but rather that, by the null hypothesis, this is the default position. So, in that sense, when atheists say that there are no gods, they are (hopefully) speaking formally under the null hypothesis.
If an atheist were to say that there are definitively, absolutely, positively no gods, then they would be unreasonable. For if they were not saying this under the umbrella of the null hypothesis, then they must be declaring it as some conclusion. But most of us can agree that there is no argument which will soundly and validly conclude that there are positively no gods.
But now that we've clarified this, we should turn our attention to the Christian and see that they are unreasonable. The vast majority of theistic arguments are only suited to advance deism, which allows for the existence of one, many, or infinitely many deities. While all of these arguments are flawed, they are at least deductive, whereas Christian-specific arguments are rarely, if ever, deductive. Proving to the satisfaction of an atheist that Jesus rose from the dead does not definitively disprove the existence of Zeus or Thor.
So if a Christian cannot argue beyond the existence of potentially many generic deities, then - just like the atheist - the Christian would be unreasonable to positively assert that Zeus, Thor, and the countless other deities definitively do not exist. Yet, Christian creed demands that this declarative statement is made.
Even if the Christian were to successfully prove the existence of a supreme deity, there is nothing that can be done to show lesser deities do not exist. And gods like Thor certainly are lesser deities, since they are not said to be omnipotent or omniscient. Their existence cannot be disproved.
This means that Christianity is fundamentally unreasonable. Christianity cannot be defended logically, but must be believed by faith. And faith is not a path to the truth: just look no further than Islam.
Suppose there exists a gumball machine, and we don't know how many gumballs are inside it. If you told me that there were an even number of gumballs in the machine, then I would reject your assertion. Your assertion is rejected on the grounds of insufficient evidence, and I am not claiming that there is an odd number of gumballs. The fact of the matter is that we don't know and can't know how many gumballs there are, and so any positive assertion is unreasonable.
This is why most atheists are the "lack of belief" type of atheist. Some of these atheists might positively assert that Jehovah cannot exist, but this is usually because of the fact that Jehovah is often saddled with self-contradictory properties. Make Jehovah's properties self-consistent, and most atheists will not positively assert that he does not exist.
Those atheists who do assert that no gods exist are (hopefully) operating under the null hypothesis. For example, we might say that adding racing stripes to a vehicle will not make it go faster. This is not a declaration that experiments have been performed to conclude this, but rather that, by the null hypothesis, this is the default position. So, in that sense, when atheists say that there are no gods, they are (hopefully) speaking formally under the null hypothesis.
If an atheist were to say that there are definitively, absolutely, positively no gods, then they would be unreasonable. For if they were not saying this under the umbrella of the null hypothesis, then they must be declaring it as some conclusion. But most of us can agree that there is no argument which will soundly and validly conclude that there are positively no gods.
But now that we've clarified this, we should turn our attention to the Christian and see that they are unreasonable. The vast majority of theistic arguments are only suited to advance deism, which allows for the existence of one, many, or infinitely many deities. While all of these arguments are flawed, they are at least deductive, whereas Christian-specific arguments are rarely, if ever, deductive. Proving to the satisfaction of an atheist that Jesus rose from the dead does not definitively disprove the existence of Zeus or Thor.
So if a Christian cannot argue beyond the existence of potentially many generic deities, then - just like the atheist - the Christian would be unreasonable to positively assert that Zeus, Thor, and the countless other deities definitively do not exist. Yet, Christian creed demands that this declarative statement is made.
Even if the Christian were to successfully prove the existence of a supreme deity, there is nothing that can be done to show lesser deities do not exist. And gods like Thor certainly are lesser deities, since they are not said to be omnipotent or omniscient. Their existence cannot be disproved.
This means that Christianity is fundamentally unreasonable. Christianity cannot be defended logically, but must be believed by faith. And faith is not a path to the truth: just look no further than Islam.