Concerned Jewish people sometimes refer to assimilation as a type of Holocaust . This is because assimilation is the leading cause for the shrinkage of almost all Jewish populations in Western countries since World War II . This shrinkage has been called the '' Silent Holocaust '' ( in comparison to the genocide against Jews during World War II ) by communal leaders such as Rabbi Ephraim Buchwald of the National Jewish Outreach Program . Buchwald said in 1992 that the Jewish community would not be recognizable in 25 to 30 years . According to the 2000 — 2001 National Jewish Population Survey , from 1996 , 47 % of American Jews married a non-Jew . The NJPS survey said that higher levels of education are associated with lower levels of intermarriage
the genocide against Jews
The Holocaust
Silent Holocaust