The only belief that actually posits nothing greater than the self exists is solipsism.
I would say the kind of Creationists who can only dream up a 6,000 year old earth, in comparison to the massive size and age we know the universe to be are the ones who do not believe in anything more powerful than themselves. They merely believe in a slightly more powerful anthropomorphized force that thinks the same way they do, and hashtag it omnipotent and omniscient to feel good about their own small minds and the prejudices they were raised with.
I would say the kind of Creationists who can only dream up a 6,000 year old earth, in comparison to the massive size and age we know the universe to be are the ones who do not believe in anything more powerful than themselves. They merely believe in a slightly more powerful anthropomorphized force that thinks the same way they do, and hashtag it omnipotent and omniscient to feel good about their own small minds and the prejudices they were raised with.