First, don't argue with the Passport Office. That is a losing proposition. Answer the questions you can answer, provide the documents you can provide and explain why you cannot provide others. If you do not satisfy the standard, you will not be issued a Passport and while there are avenues for appeal, they are long and not helpful here.

Second, for reasons which may or may not be apparent, there is clearly concern that you are not the person you say you are. No need to argue about that here. Just accept the fact that this is what the Passport Office believes.

Third, when you say that you have provided more than any other person ever, that is simply untrue. Many people provide volumes of information and whether you have provided more or less is not a useful comparison.

The suggestion about your aunt might be a useful one and it might help to get to the bottom of the Passport Office's concern. Why not call the woman with whom you have been speaking and explain that you do have one surviving relative who was present at your birth. Ask whether she could satisfy the concern and if so, what she could provide. Listen carefully so that you do not have to do this twice. E.g., let the Passport Office person explain exactly what she needs any document to say, take careful notes, read them back, and if she is willing ask if she will review a draft affidavit before you waste time with your aunt.

It is frustrating, but frustration can be mistaken for belligerence and that simply shuts down any chance you have.