If I could prove to your satisfaction that there was a logical contradiction in the concept of an omnipotent, omniscient, and morally perfect being, would you become an atheist?
Atheism is the belief "there is no God"
Atheists can argue over that, and that's ok, you desire to know what I think so don't shoot the messenger.
It is stated in many ways, usually as a goad or a declarative statement.
Here is an example. An atheist declaring there is no Creator. Lots of declarative statements like this are made around here by atheists and I notice them when I see them.
Nobody. Nobody existed TO create it.
I first need to figure out whether you, the atheist, are putting forth a coherent argument towards your claim, and that you actually subscribe to what you say. That means something to me.
I think you do believe through your philosophical methodology that the OP is true, you can prove what you pose as a hypothetical. If not you personally then someone a little better than you perhaps.
In this instance all you would accomplish is tearing down some version of thought where someone imagines this omni-God you declare is illogical. I don't believe your claims in the first place, and that's your biggest issue here with me.
It gets me nowhere towards atheism.
So I would say No, your argument doesn't get me to atheism.
There's no "right" or "wrong" answer, here. I am just asking how you'd react to a proof like that.