I understand what you're trying to do here. I just don't find, IMHO, to be an intellectually honest argument. If I'm wrong based solely on this, then I'm dead wrong and must confront why I'm so wrong. But, I find it increible that someone holds the position that a 2 year old is an atheist. This completely disfigures the definition (or how we understand atheism) of atheist.
Just because you find something incredible doesn't mean that it is. I find this position perfectly credible and ordinary, because it's the position that I hold. I find it incredible that people get themselves tattoed, but I know that others hold contrary positions to mine.
And that's okay.
Do you see that your statement holds true for every single piece of information? "Everyone, EVERYONE, is born without any notion of anything." Yes, one of those things includes the notion that there are deities. I pointed out that our brain is predisposed for language and as soon as we are exposed to language, we don't think in terms of rejecting or accepting language, we simply learn it.
This is true. Every human who is exposed to language (barring some mental or physical barriers) learns language. Feral humans do not acquire this skill.
I have maintained that our brains are predisposed to "see" deities. So, when we are exposed to things (events, situations, etc.) our brain activates the deities explanation. It can be simple things like imaginary friends or scary things in the dark or any of the elements of fantasy a child naturally gravites to.
I would disagree. Children who are exposed to the concepts of deities or other imaginary creatures (ghosts, boogeymen, elves, Santa) will believe in them. Some will grow out of those beliefs as they learn the natural explanations. Other children, like me, are not exposed to deities, and our brains don't turn to them. If we have questions about something, we ask a trusted adult and tend to take their word at face value.
If a child is not exposed to the idea of a creator god, that child will not imagine one on his own, especially if the trusted parent gives them a satisfactory answer to "where did we come from?" If a child asks a parent where the Christmas toys come from and Mommy answers, "I bought them at a mall," do you think the child will say to himself, "I think Mommy is lying. There's no way she bought those toys. I believe that a supernatural being who can see whether I'm naughty or nice delivered my toys down the chimney."
I simply disagree. Adopting many beliefs of many things, does not necessary involve rejection. To reject deities, IMO, does.
You would be wrong. Do Jewish children reject Santa?
You are saying that whether or not there deities exists does not matter? I don't think you mean this.
Hokulele already said what I would say here. It doesn't matter to me either. This is another argument from incredulity, and it doesn't hold. Not everybody thinks the same as you, but that doesn't mean that somebody's thought process are an "aberration" of what you would consider normal.
What I propose is that you might have other traits in common with other atheists because your brain has mechanical things in common. This is not something so controversial or out there. I could something like (if you were a musician): What I propose is that you might have other traits in common with other musicians because your brain has mechanical things in common. One other common trait would be perfect pitch, (not that all musicians have perfect pitch)
Do you think that people who don't believe in ghosts have something in common? Do you think that people who don't play piano have something in common? Why do you single out atheists as a group who must have something in common when all we share is a lack of something? Just because that something is important in your life, that doesn't mean it's important in other people's lives.