Tricky
Briefly immortal
Perhaps it is not, as you say a 'cartoon' version of God. Yet is seems that it is still postulating some sort of God. Is this 'oneness' in any way distinguishable from a universe which is the same but without the "oneness"? If you're just talking about naturalism, then there is simply no need to call anything 'God'. God becomes a superfluous concept.That's exactly what Nicolaus of Cusa does in his ruminations on the infinite, in "On Learned Ignorance" and elsewhere. The One, or Oneness, as "everything taken together as a single unified whole" is discussed as its own being, which is eternal. The Saturday Morning Cartoon version of God doesn't enter into it.