Given your accent when speaking English, ethnic affiliations, and country of birth, it's as I would expect.

If you were to be a Pakistani-born Zoroastrian who was naturalized as a U.S. citizen as an adult -- say after having grown up in East Africa from the age of 2 years until 18 years of age, having finished university in the UK, and then moved to the U.S. only to years later use a maroon US passport to get around some parts of the world -- then the city of birth listing could come with fewer problems for the passport-user than country of birth in the U.S. passports. Even when it comes to such person's US passport use inside the U.S.