how does it help the calf? Nothing. But that is not the intention of the song. M.Ted has stated the point: Ironically it describes the Jewish situation as a forigner in the Tsar's realm. If you are born as a Jew you are bound to suffer.
... but this song ignores too much of reality and simply blames the victim Wrong. The song exactly describes the situation (up to the beginning of the 20th century). The victim was always then.