That is precisely the important thing. Don't go around the bend worrying about photoshopping, the father's race, etc., etc. Take this document at its face value. It says Barack Obama Sr was the father. Barack Obama Sr was never a US citizen so by all historically accepted definitions of "natural born" Barack Obama Jr cannot be a natural born citizen. He is damned by his own evidence.
BTW, I still think the document is fraudulent, that FMD is the father. Maybe Trump can next challenge Barry to take a DNA test.
Sincere question: Ok, his father WAS NOT an American citizen but his mother was. Explain why her citizenship doesn’t matter?