Many people today who accept that science has proven the creation story of the Bible to be fictional, somehow still believe in the creator from that story.
But surely if the creation is fictional, the creator of that creation must also be fictional.
How can the fictional creation character called God, who in a story made the Earth in 6 days and the first human out of some dust just a few thousand years ago, also be a real creator who made the Earth 4.5 billion years ago and made humans through the 3-4 billion year evolution process?
It does not make any more sense to pluck the character called "God" out of fiction and claim he is the creator of the real Universe we know of today, than it would to pluck out any other character from fiction for the same purpose. It's as ludicrous as saying that James Bond, Batman or Harry Potter created the Universe.