Born on American soil? No? Not eligible to be President.
Nothing else matters.
Were this the case, then any enemy of the USA could visit the US, produce a child with any number of willing US women, raise that child to become president, then destroy the USA from within, using the powers of the highest office in the land.
This is precisely what is currently happening to the USA.
And this is precisely what the founders and framers warned against, and what they attempted to avoid with the Natural Born Citizen requirement for president.
So it's just that easy, huh? Crank out a kid and 50 years later he will certainly be president and be able to destroy the U.S. Amazing that Hitler or Stalin didn't try it. </sarcasm>
Citizens by your definition could and have done the same.
Rubio is eligible.