I have no idea if Ramaswamy is a "natural born citizen" (whatever that is - apparently, it all depends on whichever legal interpretations one already prefers to agree with) - and I don't really give a pair of fetid dingo's kidneys whether he is or not.
Javier Milei is certainly not a "natural born citizen" (or any other kind of citizen) of the U.S. - but if he ran for POTUS, I'd support him over Ramaswamy and all the rest (and I don't know if the guy has ever been outside of Argentina, or if he even speaks English).
This is how you get stealth conquered.
He's not an assimilated American, he says whatever he thinks will get the current majority to support him including changing positions at the drop of a hat, and he has openly declared support for globalist measures like the TPP and importing even more H1B workers to steal the jobs that Trade Agreements don't send overseas.
Selling your birthright for a mess of pottage and a few lies will leave us strangers in the land our fathers bought with their blood, if we are left alive by the hostile foreigners who dispossess us.