A passport can classify you by a place you know less intimately than the place it keeps you from staying.

A passport files you under a country, and that country may be one you barely know while the place you actually live is the one it prevents you from staying in. The document is a statement about origin used to govern presence, and for many people the two have nothing to do with each other. The classification is precise and it is not about your life.

If this is your situation, it is worth knowing the distance between the two is real and not something you should be able to reconcile. If it is not, be slower to read a nationality as a description. Where someone is from and where someone lives are separate facts, and only one of them is on the document.