The OP expressed God in terms of an abstraction rather than a personality. God is a "unifying connection" having to do with the fact that "we all came from the same big bang and share a common future". My questions are meant to explore that in terms of other less personal understanding of the "ultimate" from recognized religions.
I have been reading a bit about Jediism as another example. My own exposure to Star Wars as a child was one of my first experiences of a self-conscious sense of spirituality. The Force, like the Tao, is an abstract intuition that can be correlated with ones experience of conscious awareness and the character of the Universe. The Star Wars stories show a the Force to be able to grant effectively magical or mentalistic powers for their practitioners whereas this is not claimed by those who practice Jediism.
I'm currently watching the TV series Star Trek Deep Space 9 which explores the very fine line between faith and science. The last episode of Season 1 and the first episodes of Season 2 deal directly with concepts of faith, science, legend and political needs. I find that in this milieu there is plenty of room for belief to play a role where political power forms up into divisional forces and a symbolic relationship to human potential can become a motivating force for social unity. Belief in a symbol of human moral ideals whether a played by a fictional God or another fictional human character whether perfect or not or even just ideal human character traits while not literally true are often motivationally profound. Does such a belief support an unjustified belief in something unproven? Is it worthy of an atheists rational scorn?
We all, in theory, originate from the big bang. We again originate, in theory, from a single organism. Now if you want to call those things, (the big bang or DNA/rNA) gods you are free to do so. If you want to take abstract concepts like "order," "fate" or time and label them gods you are again free to do so. However, know that these are different than the god concepts that most people use. When you say I believe in god that attempts to communicate something.
What do you think that communicates? Many might answer something vague like "that i believe in a higher power." But what does that mean? We work with labels and abstractions to help us grasp concepts but we when we are questioning the labels and abstractions names we are in effect questioning communication, not the concepts themselves.
A person saying the Sun is a god when meaning nothing more than the sun is a sun only serves to obscure their actual beliefs.