Okay lets get some terms straight:
Theistic deity versus Deistic deity. If you are not familiar with deism, then please seek out wikipedia article on deism. There is a difference, and deists do not believe in an intervening "God" (Capital G). So if you want to continue to work under the tacit assumption that all "God" concepts are theistic ones, then that is your prerogative, but you will never be anywhere near as convincing as you seem to find yourself to be.
Deism is a form of theism. And yes, all "God concepts" are theistic ones,
by definition. In any case, I've already mentioned non-intervening gods, such as deistic ones- if they do not cause any changes in the world, their existence
is a distinction which makes no difference.
The Universe =/= Reality. The Universe is the limit of our observations. The Universe is a subset of Reality, and it might indeed be very close to the true limits of Reality...
This is a questionable definition, but OK...
... but I highly doubt that, and I find it incredibly troubling that someone as educated as yourself does not realize just how ignorant we are about the extent of our knowledge of the universe (let alone reality in general). There are Large Gaps in our knowledge of the universe, and until we can resolve those satisfactorily we cannot make any strong claims about the extent of the Universe.
This is irrelevant hand-waving, and doesn't really address anything I've said. We can acknowledge that our knowledge of the universe, or of reality, is miniscule in the grand scheme of things, and nevertheless know that certain concepts are incoherent and thus cannot be instantiated,
even in principle. We can tell, just from analyzing the concept, that a round square could not exist- we don't have to wait to search every corner of the universe to know there is no such thing; roundness precludes squareness. Similarly with the logical problems with the concept of God that I've mentioned.
So when I tell you that "God" transcends logic and existence, then that means that you can claim that "God" both exists and does not exist as a matter of FACT.
You can claim this, but it is self-refuting. An entity which "transcends logic" is no entity, it is no object, and clearly it is not a subject of any coherent discourse or belief.
How is this done? I can logically assert a contradiction when the universe of discourse is fully indeterminate (doing this places things squarely outside the boundary of reality, but since we are discussing something which is purportedly outside the boundary of reality it is allowable)
Sure, it is allowable because we are now talking about a pure fiction;
so anything goes. Unfortunately, as above, placing something squarely outside of reality, means placing it outside of the realm of existence, knowledge, and even coherent discourse. Thus theology or any non-poetic discourse about God is impossible, as is theistic belief generally... This is a curious route to take.
The principle of explosion allows me to derive anything; including the laws of logic itself. So my "contradictory thing," which is tentatively labeled "God," can in fact do anything, and is required to remain separate from existence itself.
And as above, a "contradictory thing... separate from existence" is not an existing thing, or a real thing, or an object or entity. You can deny excluded middle and try to invent some special status for this thing which does not exist, but if it is not the case that God
exists, then it is not the case that God exists and the theist is mistaken.
The action/non-actions taken by this "thing" might very well qualify as existing (they would supposedly have real enough effects), but how would you distinguish this from anything that is supposed to happen normally? You can't; anything which "God" "does/not does" is the normative value for existence vis-a-vis omnipotence.
If God is responsible for any changes in the world, if he has exerted any causal agency, then this is distinguished the same way anything else is distinguished; is there evidence of changes in the world not accounted for by things other than God?
And this leads us to your "evidence test." You have provided a glorified non-sequitur. This shows why half-trained rationality is so dangerous; you are utterly convinced that an irrational test is conclusive evidence of something (doesn't matter what it is; even if this case it is "God.")
rofl... If only calling something "irrational" or "non-sequitur" sufficed as a counter-argument, eh?
Unfortuantely, the evidentiary test is eminently sound; accounting for changes in the world is, more or less, our epistemic principle for the existence of pretty much anything else- sub-atomic particles and tectonic plates, rare insects and lesbian lizards, and everything else you care to pick. In any case, you haven't given any reason to suppose there's anything wrong here, and you certainly haven't answered the question of on what basis, if God does not uniquely account for any changes in the world, can God be distinguished from an imaginary object- on what non-subjective and corroborative basis the existence of God can be distinguished from non-existence.
Whether or not the Universe was created is irrelevant. An ET with cosmic power/technology may very well have created our universe. If this is so, then I say: "So what?" ET might very well be a "god" with a lower case "g," but it is no where near omnipotence (even if you extend the definition of omnipotence to include maximal capability as opposed to unlimited capability it is still almost certainly no where close).
In order to qualify as a "God" concept said thing needs to have invented Reality; which means logic and existence had to not exist prior. This should seem nonsensical to you (if it doesn't, then there is a gross discrepancy in our understandings of the terms logic and existence). "God" literally is nonsensical. This does not stop us from being unable to be certain about its necessity or lack of necessity. We cannot possibly know whether or not "God" is necessary, Because we do not have any spare realities lying around for comparison. How is anyone supposed to know what to look for in order to evidence "God?"
ET might very well have created the universe and even meddled in the development of life in the cosmos. Intelligent design taken in this light is unfalsifiable. You cannot possibly discount this. We do not have any spare "Earths" lying around for comparison; we do not have any spare universe creations with which to compare to our evidence of our own universe's early period. The bare fact that intelligent design is unfalsifiable is the reason why it cannot present a challenge to BBT and Evolution. It exists inside the realm of uncertainty; we cannot strongly evidence for or against the proposition.
This is not really true, there certainly can be evidentiary implications of intelligent design; but if it is truly unfalsifiable, then again, it is a difference which makes no difference, and there's no rational warrant for belief here. It can simply be discarded.