Neither..
America is the Fixings Bar.
When you come here from another country, you are already pretty much who you are as a person for the most part.
America just adds some extra flair to your life and spices it up a bit, and maybe adds some complication as well. (maybe relish wasn't the best choice of fixin's to put on my fries).
But then again, this also gets into the whole Nature vs. Nurture debate.
Where as, who you are raised by defines the nurture aspect, and what culture you are raised as defines your nature aspect.
