First a disclosure: Obama is not my candidate of choice.
Having said that, So what? Do you not believe in sincere conversion? Didn't GW profess that he "found" Jesus only later in his life? If you don't think that a person can weigh the pros and cons of competing religions and then choose one over the other, then why do churches have missionaries going all over the world to convert people from one belief system to another? Or is it all just an illusion?