Dear Chaim (and all the other great people here),
As a Christian who attempts to read people and dabble in psychology, I have a theory that I think explains Obamania: the people who worship Obama are seeking G-d and don't know (or want to admit) it.
Our Creator designed us with an inherent need and desire for Him--a desire to know and love and serve this Ultimate Power. The problem is that most of humanity is rebellious and idolatrous and isn't ready or willing to serve the Biblical L-rd. They suppress this innate human need and pursue false g-ds instead in an effort to fill this natural void. Some people find communism. Some people find Darwinism. Some people find materialism. In any event, everybody chooses a religion, at some point in their lives.
However, nothing can substitute for a unifying, central form of power, authority, and wisdom. That is why some people choose cult leaders like David Koresh, Jim Jones, Fred Phelps, and the dog trainer to be the l-rd of their lives. But on a broader scale, we see all of these disaffected youths, burnt-out Republicans, and people from all walks of life embracing the "messiah" Obama for the very same reasons. He is providing them with answers, a purpose, a platform, and above all, "hope". For once in their lifetimes, these amoral, drifting, cynical folks have a true reason for living, and they love it.
A few weeks ago, I told Chaim on Ask JTF that Obama's white and Jewish fans love him precisely BECAUSE he is anti-white and anti-Semitic, and I absolutely believe that. You see--every human being is born with a basic sense of right and wrong, and a basic knowledge of sin, whether or not they will admit it. Since the vast majority of America has rejected the Biblical definitions of sin and repentance, they try to pretend that it does not exist, but they cannot. Innately all people grasp that they are imperfect and unworthy of G-d and eternal life, even if they suppress it into their subconsciousness. Obama's fans certainly know this, and they are receptive to him because he attacks white America for its "faults"--they consider him to be a prophet calling them to repentance. They know that they are not right morally and need to repent, but since they have rejected the Biblical way to do this, they are very receptive to a false prophet who calls them to another kind of "repentance".
Either way--you can't beat human nature. Obama is having runaway success because he presents the perfect substitute to G-d that fallen man has always wanted and needed.
Chaimfan