What theme development does the following theme help?

The novel, Fahrenheit 451, was written by Ray Bradbury. The genre is science fiction and it is set in the future. The gist of the story is that books have been banned and how this affects them. Does this cause the people to become ignorant, complacent, and dull. This novel is developed by the following quotations and suggests that the theme is that without knowledge people conform to each other. “There are too many of us, he thought.

There are billions of us and that’s too many. Nobody knows anyone. Strangers come and violate you. Strangers come and cut your heart out. Strangers come and take your blood. Good God, who were those men? I never saw them before in my life!”