When did the President change his race?

As you know, this Blog is dedicated to critical thinking. Here is the latest attack by the media and our elected officials on our abilities to exercise this skill set. The standard bearer of this attack has become former President Jimmy Carter who said on NBC Nightly News:

I think an overwhelming portion of the intensely demonstrated animosity toward President Barack Obama is based on the fact that he is a black man, that he's African-American.

Now, let's see this quote from the stand point of critical thinking. President Obama entered the oval office with an approval rating over 80%. Today, according to Rasmussen, 48% of voters say they at least somewhat approve of the President's performance. Fifty-one percent (51%) now disapprove. If this shift in the President's approval rating is tied to racism, when, after obtaining the oval office, did the President change his race?

Now that's the hoop they want us to jump thru! If, as I suppose, the President has not changed his race since taking office, perhaps, it is more the policies that President Obama embraces and champions that has affected his approval rating over any concern of his ethnic background.