Absolutely not.
A foreigner is someone who is not a citizen.
A dual citizen is therefore certainly not a foreigner.
Then you don’t have a problem with someone that has split allegiances running the country?
And what If I said that Obama’s allegiances to Kenya caused him to knowingly break Federal law?
Is his multiple citizenship in up to four countries still make him eligible for the Office of the presidency if he broke our laws in illegally assisting one of the countries he has citizenship with