discriminating against ethnic groups is usually also grouped into 'racism', and judaism is both a religion and an ethnic group.
"It is important to note that my family was not religious at all. My father was not brought up in a religious tradition, and neither was I. Religion in the Soviet Union was in fact all but non-existent in those days. Most Christian Orthodox churches were destroyed or closed. In the few existing churches one could typically only find a few old babushkas, like my maternal grandmother. She occasionally attended service at the only active church in my hometown, Kolomna. There were even fewer synagogues. There were none in my home town; in Moscow, whose population was close to ten million, there was only one. Going to a service in a church or a synagogue was dangerous: one could be spotted by special plain-clothed agents and get in a lot of trouble. So when someone was referred to as being Jewish, it was meant not in the sense of religion, but in the sense of ethnicity, “blood.”"
--http://www.newcriterion.com/articles.cfm/The-Fifth-problem--...
