I am a Buddhist. But I do not believe in the existence of gods. I do, however, believe in the existence of their concepts. They are the stories in our minds to help us understand and make sense of the world we live in, to relate to things and each other as people and animals.
All concepts help us to communicate and think. We are good at making concepts (though we are not the only creatures to be able to do so).
Given our time, our knowledge and our understanding I think it is time we had moved on, after being held back for so long by the insistence of existence.