Well, being that everyone is born an atheist, why don't YOU give us a reason why you chose a different path - a path of following a fairy in the sky? I gave up santa claus a long time ago, why don't you? Give is a logical reason; the burden of proof is on you, not atheists.
False premise.
It seems to me that, given the history of humankind and the fact that religions of some sort often seem to pop up even in isolated cultures, people are not born atheist. They are born agnostic. There is "something" out there, but it's unknown, unquantified, unexplained. From here, there are various routes this can take.
Your family's religion may explain and quantify the answers to the natural questions you were born with and developed as you grew up. This religion, since it's also confirmed by people you are around so often, seems "right" and complete to you. You may or may not grow up with the idea others should be of your same religion; that is a separate issue from merely having faith.
You may, either due to your family or on your own, discover that you are certain there is no God of any sort. You may or may not have the idea that others should be of your same anti-religion; that is a separate issue from merely having faith.
You may become either rebellious against the religion (or lack of it) you grew up with, too, whether to just spite your parents or due to some sense of spiritual incorrectness or some other reason. You may or may not have the idea that others have to "wake up," too.
Obviously there are individual experiences within those categories, and subcategories that could be generated.
Your original question has a very simple answer. If you look for proof, and every avenue you go down says "No, God didn't do this; it was ______________," then you may well come to the conclusion that there is no God. You may even feel very justified in saying so, since you have found nothing concrete that you can attribute to God.
Atheism requires quite a bit of faith as well. On the one hand, you have people who are certain (though they really only have faith) that some events in the remote past happened just so, and had supernatural elements, and meant this and that. On the other hand, you have people who are certain (though they really only have faith) that some events in the remote past absolutely did not happen just so, and did not have supernatural elements, and they mean nothing more than the sum of their mundane parts.
Your statement about the flying spaghetti monster is a real :eyeroll: to me. To people of faith, almost anything you see around you is proof that there's a God. It is at least a suggestion of an intelligence behind the organization and creation of all the myriad compounds, processes, and interactions that govern our daily life. If you consider even the many steps just to take a breath... one side will say it is science without God, another will say it is God's work entire. The certainty with which religious folks and atheists both say their way is the correct way is the very same hubris.
The reason I ended each category above with the point that it may or may not be in their nature to demand others believe the same is that this is what it comes down to. Religion doesn't start wars, or even maintain them. It is people needing to have everyone else see things their way that's the culprit.
What is the motivation for ridiculing or even questioning someone else's faith? I can think of little more private than the sort of reflection and questioning that involves the potential of eternity, or the decision that there is no eternity to ponder.
