I actually can believe that most, if not all “gods” have existed. I think the existence is not the meaningful question. Crucial thing is, what person is willing to keep as his god. I think everyone really has something as his god. For most the god seems to be fear, it rules them. If you want to know what you keep as your god, it can be seen by what you serve with your actions and words, is it fear, Father of Lies, or something else.
Bible tells God is love, I want to keep Bible God as my God, because He is good.
God is spirit, and those who worship him must worship in spirit and truth.
John 4:24