More than often, I have seen several Public Member Trees that have ancestors born in the 18th century North America. Upon examining their places of birth based on their estimated or actual dates of birth, the words, "United States", "United States of America" or "USA" were applied to those who were born BEFORE 1776, or more specifically, July 4, 1776.
The United States of America does not exist BEFORE 1776 (or July 4, 1776, to be exact). It was 13 original colonies by its states' names. When the Declaration of Independence was announced, the United States of America came to being ("'unanimous Declaration of the thirteen united States of America' adopted by the 'Representatives of the united States of America" on July 4, 1776'.").
I would like to propose to members not to include the "USA, United States of America, or United States" to those who were born anytime before 1776 based on their places of birth in one of those 13 colonial states. You can place them to those who were born in around 1776 and thereafter.
For example: John Smith, b. abt 1773, pl. Yorktown, Westchester, New York.
Jane Smith b. 4 Jun 1776, pl. Queens County, New York; d. abt 1820, pl. Long Island, New York, USA (or type in full name if you prefer).
Between 1607 and 2nd/4th of July of 1776, there never has been any designated name of the United States of America ever recorded or documented to regard a modern nation with an existing federal government at all.
I hope this suggestion can help you all.