There are two separate issues at play here that no one seems to care about; implicit atheism and explicit atheism.
Both are positions of a cognitive mind. It's not the labels that represent or equate ignorance.
You're making the false equivocation that whatever-x-y-z atheism is somehow the same as ignorance.
Atheism is a label on a person's views and opinions that are not just based on ignorance but based on thoughts and insights. The baby hasn't formed the neural pathways to form opinions yet. That comes later. A rock doesn't have neural pathways either.
Everyone seems to only want to talk about the latter, even though it obviously cannot apply to infants or rocks.
No. I'm talking about both.
Atheism is a label that describes a person's views, opinions, ideas, thoughts, impressions, etc relating to a specific concept. It's not a default blank state, simply because the default blank state has its own term, "ignorance." It's just wordplay to use the term "atheism" to represent "ignorance."
Things without contemplation cannot, by definition, be explicitly atheist. They simply remain in a state of implicit atheism - as with all things. It is a state of being. It is defined. And it is defensible. There is no weight or claim of weight behind implicit atheism other than what people are apparently making of it - just as there is no intended weight behind someone claiming that everything is god or simply saying that everything is everything... For example, if your definition of god is simply that god entails everything, then it would fit that definition, as I thought we had already discussed and moved on from.
The implicit or weak atheist is still a person who has the cognitive abilities at hand to make a thought about what belief is and what it's not. A baby can't have belief or non-belief simply because they don't have the ability to think about it yet.
It's like saying that if a person doesn't have a car, then their car is going in 0 (zero) miles/hour currently.
Any emotional response to the state of implicit atheism is founded on either ignorance or misunderstanding. People don't like having the term "atheist" associated with babies but it's entirely accurate - just like the implicit atheism of a rock is entirely accurate. It doesn't suddenly become inaccurate just because some people don't like it or have associated weight with the word, right? Apples are still red, and implicitly atheist, regardless of whether or not we associate red with BLOOD & DEATH and whether or not we believe in god and like our apples to do the same...
No, the problem is not that at all. The problem is that the label, the term, represents at least, minimally a person and his/her views, which in turn requires at least a mind that has had a few thoughts about it.
So if we want to debate explicit atheism, let's do it! I'm happy to.
But if we're talking about implicit atheism, and the default position, we should stay on topic when arguing our points, since not doing so would make any conclusions non sequitur.
All babies are also implicit anarchists. They don't believe in governments.
They're also implicit deniers of atheism, because they don't believe in atheism.
Babies are implicit nihilist since they don't believe in life.
And on top of that, they think you're wrong, because implicitly they don't believe you're right.
But it doesn't stop there, babies also don't believe that there's not a God, which makes them... theists...
---edit
Oh, by the way, the transgalactic starship that I don't have is currently flying at 0 kph out in space (where it is not).
i.e... wordplay.