This appears to be a sensible reasoning. But let me ask you this: A child of one year old who holds no belief that deities exist. Is that child atheist?
Yes, that child lacks a belief in any deity.
Because according to the simplistic definition that "atheism is a disbelief in deities", a child is atheist.
According to one dictionary that's one of many. Another is simply a lack of belief in deities, spirits, etc. They imply and mean different things.
It's not so simple. There must be something more to atheism than simply disbelief in deities.
There is, and you have been told that many times.
- I posit that the overtly rejection of deities on the premise that they don't exist should be called atheism.
- I posit that the disbelief in deities based on lack of objective evidence for their existence is skepticism.
- I posit that the inability to believe or disbelieve in deities based on the premise that they are unknowable isagnosticism.
Well, for starters, all of those things do mean that, but also more than and they all can mean variations on that. You are also missing a lot of similar but subtle variations on belief in deities or the spirit world. That's why, as I said previously, you often see people define the specific thing they are talking about when a word can have various meanings.
My proposition is that there is a fourth stand: That the only thing that can be said about deities is that they are absent, not present, from the known universe, thus leaving the questions of belief or disbelief, existence or non-existence, entirely open. This I coined absentheism but feel free to call it anything else if you come up with a more suitable term.
Define what you mean by absent, please, and how we know they aren't here. If a student is absent from class, that pre-supposes the student exists. If an item is absent from a drawer, say a fork, that supposes the fork exists. Your position isn't clear. Are you saying deities exist but removed from us? That's already a position that is defined. Are you saying they don't exist? Already defined. Are you saying it's unknowable? Already defined.
Your position is very muddy in that it's not at all clear what you are trying to say. How do we know they are absent unless someone defines the specific properties of a deity so we know to look for it? What gap in positions is absenteism filling?
However, you introduced another concept: functional atheist. That is, regardless of how your intellectual position towards deities is, your attitude in life is consistent with a belief that deities don't exist. This functional atheism is very much on the same domain of attitude of an apatheist, who "regards the question of the existence or non-existence of a god or gods to be essentially meaningless and irrelevant".
Apathy implies that I don't care. That's not my position at all.