Goldberg, a secular Jew, had been closely associated with left-wing causes for many years. There were probably several threads to his attraction to a radical cause. His close associates in Toronto were communists, including his brother-in-law, who shared his revolutionary worldview of social justice. Shortly after moving to
New York City, he became director of the
Arbeter Ordn Shuln, and helped set up a nationwide network of these schools, reaching a peak number of 140. For decades beginning in the 1920s, including two as director, he was associated with
Camp Kinderland, known as a "
red diaper baby" camp. From 1937-51, he was national school and cultural director of the
Jewish People's Fraternal Order, a branch of the pro-Communist
International Workers Order. At its peak after
World War II the JPFO had 50,000 members. When the IWO was about to be liquidated during the Red Scare in 1954 by the Department of Insurance of New York State (IWO was a fiscally sound fraternal benefit insurance company with close to 200,000 members in its peak years, 1946–47), Itche withdrew the Yiddish shuls from the JPFO in order to preserve them, creating the independent Service Bureau for Jewish Education so that the schools could continue to function. In the anti-left atmosphere of the period, this effort was only partially successful. Over time he made a transition to
democratic socialism, eventually seeing the
Soviet Union as an anti-model. By the 1950s his enthusiasm for the Soviet Union had completely evaporated, particularly after the Soviets
executed Jewish writers in 1952. Beginning in 1957
Yiddishe Kultur co-sponsored an annual public remembrance of the 12 August 1952 murders. Nevertheless, he remained a central figure in the
Jewish left for decades. Goldberg wrote and lectured frequently on the proud Jewish content he found in the works of such Soviet Yiddish writers as
Perets Markish,
David Hofstein, and
David Bergelson. The
Yidisher Kultur Farband (YKUF) in whose leadership Goldberg served for many years published numerous works by these authors when other Yiddish publishers in the west rejected them as outside of the Yiddish canon. ==Centenary and accolades==