1. Atheism in an atheist says "God does not exist. Period.", but
2. Agnosticism in an atheist says: "Possibly there is God."
That is a common misunderstanding. An atheist is
not someone who claims knowledge that a God doesn't exist. An agnostic is
not someone who claims that it is possible that God does exist.
An atheist is someone who
does not believe in the existence of a God (or gods).
An agnostic is someone who either
does not claim knowledge of the existence or non-existence of a God (or gods), or who denies the possibility of such
knowledge.
Atheism pertains to belief, and agnosticism pertains to knowledge.
I'm an agnostic-atheist because I don't believe in the existence of a God (or gods), nor do I claim knowledge that no God (or gods) exist.
Any human has a god. Existence is the main property of a thing. So, there are two Gods only: existent for theists, and a-existent for atheists. Therefore you are coming to people, who like their own god, not yours.
That is gibberish. Existence in and of itself isn't God. God is thought to include far more traits than mere existence. Atheists don't deny that entities exist, but only that this has anything to do with divine beings.
I have a nitpick I need to mention: existence isn't a property, at least in any direct way. It is the condition of having properties. If an entity has any properties at all, we say that it "exists". Existence isn't something separate from volume, mass, shape, cheeky smile, etc, it is
having those properties --
any properties. It is merely something we say when we recognize that properties are present.
I don't object to saying that we live in a realm of "Existence" (things that exist), but I don't see this as some distinct property or entity from the properties of tables, chairs, cats, human beings, etc.
eudaimonia,
Mark