Rubio never had in his hand Cuban citizenship. He was born here. I don’t think that settles anything, but it makes Rubio’s situation very different from Cruz’s.
The 14th amendment protects Rubio, Jindal, and Obama. They were infants born in the US.
However, IF the question is, “Would George Washington have considered them natural born citizens?”, then we have an entirely different set of facts that we must apply.
My sense is that GW would not have accepted the NBC status of Jindal and Obama, but that he possibly would have accepted Rubio’s.
He did in the same way that Cruz held US and Cuban citizenship in his. We could argue over whether or not one has to have the claim adjudicated in order to "have citizenship," but the claim is a valid claim, and if correctly adjudicated in a relevant national court, at birth, Rubio is as much Cuban as Cruz is American.