Sorry mate, these are not labels. These are facts. If you are a post-puberty female, you are a woman. If you are registered to the republican party, you are a republican. If you are a US citizen, you are an American.
Contrast that with "labels" such as being a racist, a homophobe or a right wing conspirator. They are subjective terms, loosely defined and often mis-used to make pejorative points.