Caleb the issue is faith. I for one wonder if Jesus ever existed. Check out Richard Carrier on the historicity of Jesus. Belief in Santa Claus or the Easter bunny is not a worldwide phenomena exerting its influence on policies. Theism is and that is the problem. I just finished listening to "the end of faith" by Sam Harris and he lays out pretty convincingly why faith is and will continue to wreak havoc on mankind as long as it exists.
If faith is not challenged it will continue to exert control over people's lives. People that have no choice because of where and when they were born, and others that have no belief at all. An example of its influence is that a majority in the U.S. believe evolution is a myth. A third of the world are taught in their holy book that they should kill all infidels.