“Take away the naturalization act and NO ONE is a citizen either natural born or naturalized.”
To the contrary, take away the naturalization act and there are those who are citizens: those born in country with parental US citizenship. No law is required for their citizenship, they are natural born.
“At” is a point in time.
“By” is causal.
§ 1401 declares who shall be nationals and citizens of United States AT birth. Such persons are citizen at birth BY law.
The causal agent is operation of law. That law may vary causing a person to either be a citizen at birth or not at all.
A person born in country to citizen parent is a citizen BY birth.
The causal agent is birth. This person is always a citizen, this has never been doubted.
The courts have disagreed with your interpretation.
Purpura & Moran v. Obama: New Jersey Administrative Law Judge Jeff S. Masin: “No court, federal, state or administrative, has accepted the challengers’ position that Mr. Obama is not a “natural born Citizen” due to the acknowledged fact that his father was born in Kenya and was a British citizen by virtue of the then applicable British Nationality Act. Nor has the fact that Obama had, or may have had, dual citizenship at the time of his birth and thereafter been held to deny him the status of natural born. It is unnecessary to reinvent the wheel here. … The petitioners’ legal position on this issue, however well intentioned, has no merit in law. Thus, accepting for the point of this issue that Mr. Obama was born in Hawaii, he is a ‘natural born Citizen’ regardless of the status of his father.” April 10, 2012
Voeltz v Obama, Judge Terry P. Lewis, Leon County, Florida Circuit Court Judge: “However, the United States Supreme Court has concluded that ‘[e]very person born in the United States, and subject to the jurisdiction thereof, becomes at once a citizen of the United States. Other courts that have considered the issue in the context of challenges to the qualifications of candidates for the office of President of the United States have come to the same conclusion.”—June 29, 2012
Since the Constitution is the supreme law of these United States, please provide a reference to support your position siting either the Constitution, Bill of Rights or current law.