Your argument makes no sense. Here’s why.
There is a legal definition of natural born that is different from native born. Natural born means that you are the child of parents who were born citizens of the USA and you were also born in the USA, or its territories. I think you could also be born to US citizens who were serving overseas in the employ of the US government.
Nobody knows for sure where (or when) Obama was born. He has a step grandmother in Kenya who claims that she was present at his birth in Kenya. There are/were Christian missionaries in Kenya who claim that they know he was born there.
His mother was enrolled and present at the University of Washington in Seattle 2 weeks after his supposed birth.
His “parents” never lived at the address on the bogus Hawaiian COLB that was posted on the Internet.
Nobody living seems to know when, or where, his parents were married. None of his classmates at the University of Hawaii seem to remember Obama’s mother at all. She was not a regular in their gatherings.
Hawaiian law at the time of his birth allowed a relative to request a Hawaiian birth certificate, even if the child was born elsewhere to Hawaiian parents. That law has been changed, but it was in effect until he was 2 years old.
He was listed as an Indonesian citizen and adopted by his stepfather as a small child.
Newspaper articles appeared when he was elected to the Senate touting him as the “first Kenyan to be elected to the US Senate”.
All of the aforementioned “witnesses” have been silenced, either by death, or by decree of the government.
If his father really was Barack Obama Sr., the marriage probably was illegal since US law does not recognize plural marriages.
The only way he could be a “natural born” citizen is if it turned out that Frank Marshall Davis was his father, but that would make his biography a lie.
DNA swab, anyone?
This is not as simplistic as some rogue nation declaring that Sarah Palin is now a citizen of their country and therefore ineligible. That argument is ludicrous.
My argument makes perfect sense to those claiming Obama was born in the US but of a british father so he acquired dual citizenship.
That’s the problem with “birthers” there are just so many arguments about why he isn’t qualified. Some make sense others don’t. If he was born in Kenya and we can prove it then yes he is ineligible. But if he’s born in the US but another country decided to give him citizenship (whether at birth or later in life) then it shouldn’t matter unless he took advantage of that citizenship (like applying for foreign student aid or travling on a visa from that country).