In the 1930s he argued in favour of cooperation with the Communist Party of Poland and in 1934 he urged the DSAP to struggle jointly with the communists against fascism. Glücksmann welcomed the Popular Front line adopted by the 7th congress of the Communist International in 1935. In Bielsko, local National Socialists began a campaign of harassment against Glücksmann. As a result, Glücksmann resigned from his position as the chairman of the DSAP organization in the Bielsko subdistrict. The attacks against the party did however not decline. In September 1939, Glücksmann and his family fled to Volhynia and from there to Lwów (Lemberg or Lviv). In Lwów he began working as an Arithmetics teacher. In the fall of 1940, once the area was taken over by the Soviets following the Soviet invasion of Poland, he was deported to Yoshkar-Ola, where he worked as a woodcutter. After the Sikorski-Mayski Agreement between the Polish government in exile and the Soviets, Glücksmann was free to leave Yoshkar-Ola and in the fall of 1941 he moved to Bukhara. He died in typhoid at a Bukhara hospital on October 6, 1942. His wife and children later returned to Poland, and would eventually migrate to Sweden.