I agree with post 2 that this is a different view of post-Holocaust America than we usually see in novels. It is interesting to see the level of classification in the American mind-set. People were placed into stereotypes and almost hierarchical positions. While I don't agree with this, it is the way it was at that time period. The holocaust affected the way some American people looked at Jewish people. It forced some people to open their eyes to the wrong in stereotyping this group of people. Unfortunately, this same eye opening in regards to African-Americans did not come at the same time period.
I thought it might be helpful to pass along some links to you. I didn't find much, but here are two that may be helpful:
I have always thought of it as a new way of looking at the Holocaust. We have plenty of memoirs and personal stories, and even historical fiction. For an author to start playing around with concepts of the Holocaust and how it affects people's lives after the fact is a new idea.