If Obama is 100% American simply because he had an American mother explain:
Baldur von Schirach had a German father and an American mother. He was born in Berlin, but English was his first language; he didn’t learn German until he was age 5.
Through his mother Shirach’s ancestry included an American general who lost a leg a Bull Run and 2 signers of the U.S. Declaration of Independence.
But Shirach joined the Nazi Party and served as the head of the Hitler-Jugend. He was convicted as a war criminal at Nuremberg and served a 20 year prison sentence.
So tell me again how a person’s mere parentage determines their ancestry.
You not the sharpest knife in the draw huh?
When you are born in the United States you are 100% AMERICAN. I might be seeing the problem here. Geography may just not be your strong suit. The fact that Hawaii is an island doesn't mean it's not a state in the UNITED STATES of AMERICA.