This is simply your interpretation of the Presidential eligibility clause of the Constitution and certainly not a fact as you try to state it as. Just simply your opinion.
Myself I absolutely hold the opinion that the term ‘natural born citizen’ was intended to mean having two American citizen parents at birth. I have read much of the arguments that claim so and also much of the arguments that claim that it does not. Up to now at least I have been more convinced by the arguments claiming dual citizenship at birth to make someone ineligible.
Even by using just simple common sense anyone could agree that allowing someone with dual citizenship and dual loyalties to other nations to be dangerous to a nation for the position of President.
Obama of course even showed his loyalty to Kenya by illegally going over there as Senator to campaign and influence their Presidential election.
Then of course there is also the issue of his possible Indonesian citizenship as well and the issue of his real name.
The issue should have been heard in Court and so it is also a travesty in my opinion that the Courts have denied hearing any of the cases so far.
It also happens to be the opinion of every court that has ruled on the matter.
Myself I absolutely hold the opinion that the term ‘natural born citizen’ was intended to mean having two American citizen parents at birth.
The courts disagree.
Just because something is a bad idea doesn't mean it is contrary to the Constitution. In fact, most bad ideas are perfectly constitutional. In such cases, the best way to prevent bad ideas from becoming reality is to use the ballot box. So if someone running for president is a current active dual citizen of another country, the best way to keep him from becoming president is to vote against him.
Not that any of this applies to Obama, who he lost his dual citizenship with Kenya nearly 30 before he ran. Furthermore, he was never an active dual citizen, in that he never held a Kenyan passport, never voted in their elections, etc. I still voted against him, though, for other reasons.
I'd also say that I wouldn't hold dual citizenship against a candidate who is a current dual citizen, but who never acted upon it. For example, Italy recognize first-generation US-born Italian-Americans as dual citizens. If such a person never bothered to get an Italian passport and never voted in an Italian election, I most certainly wouldn't mind if such a person became president.