...what the Constitution requires... (IMO as well) ought to be controlling given we are a nation of laws.
...what the law ought to be... (IMO as well) is left by the Constitution itself for the legislative branch.
The Founders acknowledged and made exception for the fact there would be no NBC presidential candidates at the beginning, but rather only after the nation's formation had matured. The Constitution clearly, specifically and expressly provided for an initial period of time during which the nation could grow NBC citizens for the purpose of presidential qualification.
There is nothing in the Constitution that supports finding the child of a non-citizen is a NBC.
President Chester A. Arthur’s father became a citizen after Chester’s birth.
The future president was born in 1829. His Irish father William became a naturalized citizen in 1843 when Chester was 14.
Also, another constitutional/statutory dilemma: in 1986 2 million illegal aliens were granted amnesty. Many of them have become naturalized citizens. Soon their American born children will be old enough to run for president. Is the child of naturalized U.S. citizens but former illegal aliens a natural born citizen, even if the child was born in the U.S.?