Who is the antagonist of the memoir? Explain.Farewell to Manzanar

In my opinion, the antagonist in this book is society in
general -- perhaps this can be split into American society and Japanese American
society.

I say this because the protagonist is, quite
clearly, Jeanne Wakatsuki Houston herself.  So then we need to ask what her conflict is
and who is stopping her from doing what she wants to.

To
me, the conflict is between Jeanne, who wants to be herself (part Japanese, part
American) and the two societies.  They both reject her in some ways because she is
trying to be in between they two of them.