I think the man is a humanist. he has no idea why or how people could get so attached to the idea of God and his son Jesus Christ. I think he actually feels bad for and holds in contempt, people that do.
In the end, he looks down on people that he sat in the pews with for 20+ years and he sees the world through the eyes of a person that has no connection with Christianity other than contempt for it’s morality.
By his behavior, Obama's not Muslim or Christian. He certainly favors muslims over all others, but he hasn't a shred of humility. I can't imagine Obama praying on his knees to any god, and that is why I believe, like you, that he believes in creating a better future for humanity by the works of government. People who reject God are left with nothing else; they have no foundation for morality, no absolutes to keep them from becoming what they detest, no promise of redemption. They are forever subject to the sinful natures they deny. They are worthy of pity and prayer, and nothing else.