i look past the fact you didnt mention me as someone with credible input on the subject
im positive that the clause is a preventative measure in defense of their country from foreign invaders.
a "trojan horse" candidate if you will.
the founding fathers probably envisioned some british duke coming over, gaining citizenship, using his royal inheritance to win the americn presidecny campaigning under false pretense...and then turning over the country back o the british
now days we probabl imagine a chinese, muslim, argentenian, north korean.. etc