What new evidence and observations would those be? How would they show that my God does not exist?
It's a hypothetical. The question is whether you're willing to look for information that may contradict your beliefs (which would require defining what you would expect to see if your beliefs are true). That is, after all, what you're expecting non-believers to do.
I do not know what God wants...
You missed the point. You had just agreed with my statement that God doesn't (can't!) have
any wants or needs. It is simply irrational to agree with that statement but them immediately go on to talk about what God wants (even in the context of us not knowing what God wants). This is a classic example of internally inconsistent definitions of gods and religious beliefs.
Baha’u’llah made it perfectly clear that God has no needs since God is self-sufficient, thus God cannot have a “need” for humans to believe He exists
Which poses the question of why both Baha’u’llah and you put so much effort in to convincing people that God does exist.
You are preaching to the choir. I only wish you could convince your fellow atheists to shift away from the simplistic idea of theist vs atheist, believer vs non-believer, and that we're all just individuals, each with a unique set of beliefs and viewpoints that can't be generalized.
Maybe it would help if you weren't promoting a generalised set of beliefs to be held by lots of people?
How could you test your hypothesis unless you were able to know what the hypothesized God was actually doing?
Any well defined hypothesis will have logical consequences. We test a hypothesis by observing or experimenting around those predicted consequences. If the results are consistent with the hypothesis (and no other), it is supported, if the results aren't consistent with the hypothesis, it is challenged or countered, and a new or adjusted hypothesis is required.
I am not asserting what I believe about the soul, I believe it. The reason I believe it can never be studied and measured by scientists is because Baha’u’llah wrote that the soul is a mystery.
With respect, just because he wrote it isn't a valid reason to believe it as truth. As it stands, all you have is the empty claim that such a thing a "souls" even exist but that they are (ever so conveniently for you) impossible to test for. With literally zero evidential or logical basis, there is no justification for giving that claim any serious consideration. You certainly can't use it as a basis for your wider claim that "the religious" in general is somehow beyond the reach of science.
If the existence of God(s) cannot be proven as a fact where does that leave this discussion?
Well, that would be the conclusion of the discussion, though that would really require you it also accept that you can't somehow "know" your God exists anyway. That gods haven't been and can't be proven to exist is generally agreed (though sometimes for different reasons). It issue is when theists expect people to accept the existence of their god anyway (though not any of the others).
I do not expect anyone to accept my beliefs as truth, but I try to use logic to get my points across.
Sorry, but you are not succeeding there.
Everything in this physical world is subject to the rules of logic but the rules of logic do not apply to God.
That's just another empty assertion (or "belief" if you prefer). If that is true though,
you can't apply "logic" to God either, which is what you literally just said you're doing.