Humans aren't gods in the sense that we are immortal beings that can control the weather or throw lightning bolts. Humans are synonymous with God because God is the sum totality of all things. Perhaps you are not comfortable with the term "God" and instead may simply prefer the terms "Universe" or "existence". Either way, humans are synonymous with everything else that exists, because ultimately there is only one thing: the Universe itself. You can't say that humans have a separate existence as individuals, because you can't define what humans are without also describing their physiology, their genetic relationship to other organisms. And their biology cannot be described without also describing chemical processes and the environment of the planet Earth. Humans exist within a context, as do all things. So humans cannot exist apart from the Earth, apart from the Universe entire.

And when you realize that separate things don't exist, that there is really only one thing going on, you realize that humans ARE the universe. And so are dogs, trees, viruses, black holes, asteroids, computers, beer bottles, and so on. The universe didn't just create us; it literally IS us. You can't describe humans without also describing the universe; the two are intertwined. They are one and the same. From a pantheistic point of view, then, humans are synonymous with God. But you don't have to use the word "God" if you don't want to.