This statement has already been refuted... many times on FR.
So his parents were not Cuban nationals when he was born in Florida? Not that that matters anymore, except for Republicans.
No it hasn't.
It may have been debated many time, like you just did, but I'd hardly call that refuted.
Besides, with a sign-up date only 4 months old, you couldn't have been a part of that "many times" debate unless you were here under a previous screen-name.
-PJ