Discussions like this often come down to our own idea of what god is. Like many others I don’t have faith in Jehovah, Christ, Jaheshua, Allah, Zeus, Odin or any of the named gods. No one can offer objective proof that these gods exist or that they don’t exist. It comes down to whether we want to believe in the existence of one of them and consider our choice to be ‘almighty God.’ Such a conclusion can only be based on our interpretation of our own subjective internal experiences. Acceptance of experiences that others share is also a factor. The result is faith in God.
Those that choose not to believe in any of the gods on offer are not automatically staunch atheists. Nor does it mean they have concluded that humans are the only intelligent life in the universe.
On a probability basis it is likely that there are other forms of life on other planets which those creatures are suited to. Maybe there are beings that are invisible to the human eye that do not need the surface of a planet to dwell on. Perhaps other dimensions of consciousness do exist beyond our present knowledge and an ultimate source.
If we are to be objective, until these things and the existence of a god can be proved beyond doubt, the concept of an all powerful invisible being must remain a theory or a possibility. As a mere mortal, air breathing, earth dwelling, carbon unit , I am content to accept my limitations and continue on my spiritual journey with an open mind, knowing that my time on earth will run out without ever knowing the secrets of the universe.