Josh,
Honorary consulates are not really that informed. There is a lot of info on the Internet, you only have to tell them "Grundgesetz Artikel 116, Abs. 2"

Unfortunately, this page is onyl in German but I remember to have seen similar information in English, too.
https://www.bva.bund.de/DE/Services/Buerger/Ausweis-Dokumente-Recht/Staatsangehoerigkeit/Einbuergerung/Anspruch/EinbuergerungA_node.html
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David Seldner, Karlsruhe, Germany
seldner@...