"They are equally supported by the historical record."
Oh, come on. That's nonsense. EQUALLY supported? That is not a credible perspective in the slightest.
"No. They are all written down stories of revelation."
You say 'stories' as if that means they aren't true. Not that I grant this assessment, but how is it that you manage to conclude that the FSM is equally supported with the NT? Does the FSM have 27 docs documenting its origination? EQUALLY? Dude. Have you seen even representations of its founding docs, or only assertions of their existence?
"You'd have to show me how you get from 'Jesus said and did X, Y, and Z' to 'a Creator-God exists and has the properties of immanence, transcendence, etc.' Again, knowing the basics about the historicity of Jesus and the documentation, I don't see how you establish anything at all about what Jesus really did with any confidence."
You're still conflating it. Let's assume that you do know with confidence that Jesus said and did X, Y, and Z. He raised people from the dead, he walked on water, he fed five thousand people just with a few loaves and had leftovers, he predicted his death, and his resurrection, and did rise from the dead. Assume it. Now answer the question: is that enough to compel you to compel you to be a Christian or not?
If not, it is plain to see that your 'concerns' about the historicity of Jesus and etc is completely irrelevant. This wouldn't bother me if only you'd admit it. It's this duplicitous "I think the evidence is bad but it doesn't matter anyway" attitude that's annoying. That causes me to ask just what would convince you? (and no, that's not a rhetorical) And if you can't think of anything, I not only feel that your position is not credible, but I would think that it is not robust enough to even conceivably be considered a worthy challenger to Christian theism. If your goal is to deconvert Christians, you're going to find it a hard go with that approach.
Oh sure, you might convert some 18 year old idiots who think that they learned enough about Christianity from Sunday School and VBS, but that's about it. And this probably isn't the place to find such easy prey, either.
""We have the exact somethings we would expect to have IF those entities existed, just as you claimed:""
Sure. But,
"The only way we could gain any direct evidence about the nature of the FSM is this: the FSM would have to give us that evidence. He would have to reveal it to us."
Actually, from my readings of the FSM, it is not transcendent or immanent in nature. So, you're wrong. And if you think an alleged letter surfacing in 2005 is of equal historical weight as the thousands of manuscripts and parchments, etc, going back to the first century, I assure you this does not establish your views as credible. Also, its worth mentioning that we know that the FSM is satire made to demonstrate a point, and not the points you are trying to make.
"The properties of the FSM are fully consistent with every scientific observation and He has revealed himself through his prophet Bobby Henderson."
Looks like an epistemological bottleneck to me. When Bobby Henderson predicts his death, does what is necessary to bring about that death- ie, refusing to adjust his testimony knowing he is going to be killed, actually is killed iby his enemies and in full sight of his enemies and followers alike, is put in a tomb that is guarded by his enemies, rises from said tomb, and appears to his followers, we can then consider him as possibly a worthy competitor.
"I am in as good a position as anyone."
Hardly. Seriously, if you continue to insist that the FSM, IPU, etc, have the same historical credentials as Christianity, whatever position you are in, it is not one of competence to address the evidence. Sorry.
"I call myself an atheist, and an a-GKMist, and an aFSMist, etc. You suggested the position might be labeled agnostic. I don't care what you call it. Label it as you wish."
Some atheists get their nose out of joint insisting that 'atheist' applies definitionally even to all the other isms. Just trying to clarify where you are.