Children born abroad to diplomats have always been natural born citizens. Why? Diplomatic immunity. The laws of the country in which they’re serving the US do not apply, not even citizenship laws regarding children born there. The whole natural born citizen thing is jurisdictional. No jurisdiction of any foreign sovereignty, only US jurisdiction, makes a natural born citizen. That’s true of a birth abroad and it’s true of a birth in the country. Or, at least that’s the conclusion I’ve reached after looking into the matter pretty thoroughly.
I couldn’t agree with you more but do you trust the SCOTUS to arrive at a similar opinion?