How would you treat such an argument with regard to fairies? or holocaust deniers? Its important to understand that defending any other belief about the world in this way is extremely inadequate. And theres obvious reasons why we dont allow this sort of discourse in any other area of life; because of how well aware we are about things like wishful thinking, subjective biases, etc.
Holocaust deniers can simply be pointed to mass graves, concentration camps, photos, etc. Fairy lovers can be asked why it would be logical to believe fairies existed.
If your experience doesn't grant you access to some sort of empirical reproducible evidence that can be displayed to other people you should really be skeptical of any assumptions your inclined to make about your own experiences. And there's certainly no experience you can have that can give deference to any specific religious claims; Jesus born of virgin, resurrection from the dead, transubstantiation, or any other specific dogmatic claim that has done genuine harm to human societies.
You ask for reproducible, empirical data as your evidence, yet humanity has no way of providing empirical data for everything (in actuality, very few things) in the Universe, let alone outside of it, and since the God I believe in transcends this Universe, there is no reason to assume that my God should be detectable/traceable by reproducible, empirical data. The fact that my God is a person further complicates demands for reproducible, empirical data.
Here's a hypothetical situation: Let us say that I am an extremely wealthy, well connected person and you're an average joe whom I have just met outside the coffee shop. We don't exchange names or any other info, but have a conversation about coffee cup lids. You tell the story to a scientist friend of yours and he demands that you provide reproducible, empirical evidence that I exist. You begin your search, but I am in hiding, using my wealth and status to conceal my very existence to anyone who isn't looking for me, or who says they want to find me, but who's desire is only superficial. How would you go about obtaining reproducible, empirical evidence in such a case?
Also, I find it quite odd that atheists have little to no respect for the good that religion, especially Christianity, has done for humanity. Where do you think the morals/laws that keep people from murdering and stealing from one another came from? Do you really believe that such morals/laws do harm to humanity?
The only reason we dont treat religious beliefs with the skepticism that we do any other outlandish claim about the world is because of how politically incorrect it is to do so in our society. These are, frankly, absurd claims about the world that are greatly sheltered, which only encourages the violent and divisive status quo in a world where we have christains against muslims against jews (to take just a few examples).
Frankly, the majority of the posts I have seen in this thread are skeptical in nature. I think that atheists are definitely allowed to be skeptical, and, it must be noted, that the only reason they are allowed to do so is that this country is founded upon Christian morals that hold that you have certain rights that are inalienable, ie. freedom of religion (or lack thereof //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif), and freedom of speech. Now, as much as you want yoke all religious people together, it is unfair to do so. When was the last time a group of American Christians got together because they are Christians who hate Muslims, and decided to act upon that hatred? And what if you were in the position of a Jew, having rockets fired into your backyard? The situation is much more complicated than your broad paintbrush acknowledges.