Is nihilism the logical extreme of atheism?

[Jenny A]

The singularity is perfectly 'good'. It is functional in that it brings about a universe. God, having produced said singularity, has to be superior to it (see Aquinas). So Good is morally superior to the universe, and needs to be perfectly good.

Again you are conflating two distinct meanings of the word good: functional and moral. If god exists and created the universe he's one hell of a good builder, but not necessarily a good god from a moral standpoint.

Now since you are defining god, you can certainly define him as perfectly moral as well. But if you are going to stick to the one delineated in the Bible, it's going to be a hard sell as I've yet to see any evidence that Yahweh is a particularly moral character. Unless of course you simply define whatever he does as moral in which case I hope you don't act on that belief because killing babies for the sins of their parents is one of Yahweh's pastimes and he does involve humans in that activity.

The notion that that which creates a thing is always superior to the thing created is not a presumption I'll buy whether Thomas A. said it or not. By what standard would you measure such superiority? Many men have built things stronger, faster, and with greater longevity than themselves.