How does the account of whitey's quitting contribute the book's mood of alienation? of mice and men?

The account of Whitey’s quitting was sort of a “case in point” event within the novel.  Whitey’s quitting contributes to the theme of alienation because it is an example of alienation.  After Whitey quit, there seemed to be only superficial questions as to why he quit.  Other than that, there was no real evidence that anyone really cared enough to truly investigate, which exemplifies how Whitey really was alone just like all others in his position.  This example of definitely contributes to the novel's overall theme of alienation.