Right, but there is circumstantial evidence staking her in Japan. We know she is the daughter of a prominent Seele member, and that she went to Kyoto university.
Okay, lets put it this way: How many of those Seele people are Japanese? None except Gendo. Keel is from Germany, and the other are from France, Russia, US, and the UK, as said here
. Now, chances are, there are few others that Yui can be daughter to, because as you said, she is the daughter of a prominent Seele member. If they were really that important, they would probably be in the HIP committee. And where you go to university doesn't even relate to your nationality. I can be from Serbia and go to a college in South Africa, if I wanted.
What I infer from this is that she is the daughter of a Japanese Seele member,
Nothing suggests that.
and that she was raised in Japan as a result.
I can be from Serbia and go to a college in South Africa, if I wanted.
This is why Gendo comes to Japan, because he wants to become part of Gehirn, and does so through Yui.
And the only way he could get permission is through a prominent Seele member, which would probably be then a part of the HIP committee, which I have said:
Keel is from Germany, and the other are from France, Russia, US, and the UK, as said here
Now, you could change the formula and have Yui's father be [X nationality], have her study at an [X country] University, and have Gendo come to [X Country], but, in doing so, Nerv becomes located in [X country] because Gendo wasn't out to just join any branch of Gehirn/Seele; He wanted to play the leading role, which would mean he would have to set himself up to take over the main base of operations.
No it doesn't.
Moving Yui to any other country moves everything else to another country. That's not a good idea, no matter which mass you're trying to pander to.
No it doesn't. That would suggest that the thing they are trying to protect would also move to another country, which is impossible.
Nothing of your proof as of yet still doesn't suggest that Yui can be born from anywhere.