The sentence you picked had no bearing on the ruling, the previous sentence was what they held, as reaffirmed in WKA:
.United States v. Wong Kim Ark, 169 U.S. 649 (1898) In this case, Wong Kim Ark, the son of 2 resident Chinese aliens, claimed U.S. Citizenship and was vindicated by the court on the basis of the 14th Amendment. In this case the Justice Gray gave the opinion of the court. On p. 168-9 of the record, He cites approvingly the decision in Minor vs. Happersett: At common law, with the nomenclature of which the framers of the Constitution were familiar, it was never doubted that all children, born in a country of parents who were its citizens, became themselves, upon their birth, citizens also. These were natives, or natural-born citizens, as distinguished from aliens or foreigners.
Children who act as rude as you are Obama’s best friends and Free Republic’s worst enemies.
It is sad that civility and behavior on this site (and, indeed, in the US in the McCain/Obama era) has declined so precipitously.