Pi despises agnostics for their decision to make uncertainty a way of life. They choose to live a life of doubt, without any sort of narrative to guide them. Without these stories, our existence is “dry” and unpalatable as unrisen or “yeastless” bread.

Why does PI see atheists and agnostics very differently?

The important difference between an atheist and an agnostics is that an agnostic do not have any belief while an atheist just does not believe in God or gods. Pi feels that atheists have faith because Mr. ... Pi does not like agnostics because they do not believe in anything and thinks that they are arrogant.

Why does PI respect atheists despite his own deep faith in Life of Pi?

Why does Pi respect atheists, despite his own deep faith, in Life of Pi? Pi considers atheists his "brothers and sisters of a different faith." The first atheist he knows and respects, Mr. Kumar the teacher, believes reason, science, and medicine carried him through his illness.