The explanations given have been easily refuted.
No, they haven't - at least to no extent beyond you sticking your fingers in your ears.
No explanations have been given as to how and why a man/woman would have gone to the trouble to invent a non existent being.
Like the boogeyman, Superman, Santa Claus, pixies elves, orcs, dragons etc. Within this God is no different - a creation for a purpose (appeasement of fears, for control, to tell stories etc)
Everything thus far could have been explained by using a mundane solution.
Including god. Your refusal to accept it does not make it false, or even refuted.
The only creations that are being made today are variations on the supernatural.
Nothing new.
So your argument rests on why the supernatural is itself conceptualised?? :shrug:
Try this one on for size:
As soon as one person came up with an imaginary authority (for purposes of control, for example) another would try to trump this authority with a "superior" (but no less imaginary) authority.
The two then enter a "arms race" of sorts to come up with the ultimate authority with which to trump the other.
One finally comes up with "Whatever you come up with, my authority is more powerful".
Sound familiar?
In fact many a six year-old have the same arguments about their respective fathers.
While they can conceptualise things, it doesn't make the actual existence of that thing other than a mere concept.
You also seem to hold to the idea that noone could ever have thought of something not based on what they perceive, yet have singularly failed to explain how the concept of "god" is not based on exactly that.
And no, we don't accept your "fingers in ear, not listening" argument.