You're watching the wrong Scifi...LOL. Watch Battlestar Galactica and it's prequel Caprica, where a whole human universe where Christianity is unknow is explored. People are still finding stuff to kill and extort and be pretty nasty to each other over.
Oh, they have religion...people have always had some kind of religion, Christianity is just one of the relatively newer expressions of it.
You really need to read Joseph Campbells "The Power of Myth" or watch the PBS multi part presentation of it, if you haven't.
Campbell, a professor of mythology discusses in depth why people need their myths...it's not because they're real, for crap's sake!
Western culture and the Christian churches owe as much to Greek and Roman myth as they do to Jewish fairy tales! So, making Christianity or the Bible the only culprits here is a bit limited.
Campbell reaches the conclusion that there is a lack of effective mythology and ritual in modern American society. He finds nothing that compares with the powerful puberty rituals of primitive societies, for example. It's his claim that the exclusion of classical studies from the modern educational syllabus has led to a lack of awareness of the mythological foundations of western society's heritage. This, combined with an increased materialism and emphasis on technology, has led to modern youth in New York, becoming alienated from the main stream of society and inventing their own morality, initiations and gangs.
It's been suggested that science fiction, TV characters, sports stars and comic book heroes, cowboys, and more recently, cops and firemen, doctors have become the basis of mythology in our modern day. Star Wars and Star Trek have the central theme that all good religions or myths need...the hero's journey. We read the life of a hero and look to him as a pattern for our own lives and build a mythos around that figure. Christ is just one of many, really, but one that has dominated Western belief for some time.
Maybe it's just time for new heroes and new gods...but we're kind of stuck with looking somewhere outside of ourselves for inspiration and spiritual fulfillment, it's apparently part of human psychological makeup.
Reading this book and Campbells other ones changed my life, literally. I was able to put belief and religion in some sort of psychological, historical, personal and social perspective for the first time and see it for what it is and was.
It's not all evil...it's not even all religion, it's just part of being human to want to believe in being part something bigger and more meaningful than everyday mundane existence.
That doesn't mean it has to be real at all...in fact, knowing that it isn't is probably a lot healthier!
