It is a good show to teach us all and to condition us to the idea that it is necessary to kill others who are different than we are because that difference is deadly.
While I admit it is interesting, it certainly desensitizes all of us to death and suffering on a grand scale, and appeals to the primitive and emotionally based centers of our brain, hate, lust, anger and retribution, which all become normal in our dystopian future.
God, significantly, plays no role that I have seen in this story line. I find that odd.
There’s one episode in the beginning of season 2 in a church where Rick and others are praying a very large statue of Jesus on the cross. There are other sporadic references to God in other episodes. I believe the characters, for the most part, are basically numb and feel abandoned by God.