"Taking something for granted" means assuming it.
Your assumption is wrong.
And your understanding of the entire situation is wrong.
I can't recall having seen a single person here defend Obama.
I have seen people defend the truth.
I have seen people defend the Constitution.
I have seen people defend the law.
And I have seen people defend reality.
If you don't defend the truth, the Constitution, and the law, even when you may not particularly like what they say, and even when you may not particularly like their implications, then you are not defending the truth, the Constitution, and the law at all.
You are only defending what you would like those things to be.
And that is an assumption on your part. There is plenty of evidence in the Historical record that supports my understanding of what is a "natural citizen." There is also evidence that supports yours. I just happen to perceive that your definition serves no purpose, and therefore violates my basic belief that the founders were not idiots.
Your understanding is based on endless repetition of mostly what uninvolved legal people have subsequently said. (Misinterpreted Precedent.) My understanding is based on what the founders said were their intentions and in regards to the principles they put forth while establishing this nation.
On a separate issue, there is a lot more to the story of Captain James McClure than I think you realize. From what I have learned so far, it sounds like it would make a great movie.