In Sinclair Lewis's "It Can't Happen Here," the author reflects on the dangers of extreme patriotism and idealism. He expresses a sense of relief for those who do not feel compelled to take drastic actions in the name of their beliefs. This perspective highlights the potential for violence and oppression that can arise when individuals prioritize their ideals over compassion and reason.

Lewis critiques the historical pattern of violence used by ruling powers to silence dissent. He references the biblical story of Cain and Abel to illustrate how murder has been employed as a tool to eliminate opposition throughout history. The passage urges readers to consider the consequences of zealotry and the importance of maintaining humanity and dialogue in contentious times.