How does Holden's reaction to his brother Allie's death contribute to the novel as a whole?

The loss of
his brotherprofoundly affectsbecause he will no longer allow himself to connect with other
people after this . Also, rather than seek a complicated judgment for various people, Holden
makes hasty categorical judgments about them.

After his death, Allie becomes
the ideal by which others are judged by Holden. Holden now rejects those who have lost their
childhood innocence and lack integrity and are "phony." This loss is symbolized in
Holden's mind not only with his brother's death, but also with the savagely forced suicide ofat
Elkton Hills. Even his brother D.B. is not exempt from Holden's judgment. Holden claims that
D.B. once wrote authentic stories, but since he has been in Hollywood, he has prostituted
himself and written stories that are not good at all. They have just been written for the
money.

Holden views the world darkly, castigating nearly everyone for being
"phony." For instance, when he hears that Stradlater has gone on a date with