I think, that English language has a linguistical problem with name of "God", as it has no etymological understanding what is it behind this word and the only meaning to it is coming now only from Christianity. Other languages have different meaning for word God and even etymological meaning behind it.
If you translate Greek ancient pantheon... well, Big Bang would fit in it, just like all the gods, that described nature and things that were ruling over people, along with other gods that were describing human behavior.
Quite many of etymological meanings to most of names in other languages for God is Giver. It is not much different from Luck - the main difference between those are only in gender, but not in function. So, if someone thinks, that Gods function was to be responsible for Big Bang, they should be very disappointed or very disillusional, as the only function for God for any society was to bring prosperity to the believers(and wrath to enemies).
There are many different beliefs what is God, what is soul and so on. There are belieffs, that animals were gods - even today there is a belief in Tibet, that gods incarnate in people - young girls. Gnostics even believed, that humans are Gods and that was a big issue with Christianity...
As for something that there was something before - that is Christian construct for most of Europe. Ancient Greeks knew, that first there was a Chaos(a gods name)... for many others there was only a sea from which God emerged as a bird. So, there is not uniform belief, that there was something before, or that gofds themselves appeared into this world before creation of this world - sometimes Gods appeared even much later than Christianity is depicting them and for some American natives Gods appeared only as animals, who created humans.
If the discussion is about still unexplainable mechanisms on how this world works, especially about RND and calling it a God... well, there is a problem with English word of God, because it does not have that meaning in etymology and claiming that it is something that we can assing is not really working. Also, none of other God names means any of those things, so it would be better to establish new term for these mechanisms, how the Universe works, as God has nothing to do with that - not to mention, that extension of Christian God is not possible because of clash of meanings.
>>>I mean, are we gnats on God's
There is always possibility to accept that there is no God(who has eyes? - what about God for worms or trees without eyes, like it is for most of Life?). Rivers run without God, Wind blows without God. Life exists without God and need for it. Humans and not God are responsible for attrocities they are doing for each other and other beings.