At the beginning of WWII the leftists in the USA liked Hitler and Stalin. They only turned against Hitler because he attacked Stalin. Just like Hitler, the left hates the Jews.
The Harvard University administration during the 1930s, led by President James Conant, ignored numerous opportunities to take a principled stand against the Hitler regime and the antisemitic outrages it perpetrated, and contributed to Nazi Germany's efforts to improve its image in the West. The administration's lack of concern about Nazi antisemitism was shared by many influential Harvard alumni and students. A faculty panel that supervised a mock trial of Hitler in 1934 ruled that Hitler's anti-Jewish actions were "irrelevant" to the debate. Nazi leaders were warmly welcomed to the Harvard campus and invited to prestigious social events, as the Harvard administration strove to build friendly relations with thoroughly Nazified universities in Germany. By doing so, Harvard's administration and many of its student leaders offered important encouragement to the Hitler regime as it intensified its persecution of the Jews and strengthened its armed forces.President Conant's insistence on treating Nazi academics as part of the "learned world," and his reluctance to offer faculty positions to prominent Jewish refugee scholars, was shaped in part by his own antisemitic prejudices. When the DuPont corporation sought his advice about hiring a German Jewish scientist who had fled the Nazis, Conant urged it not to employ him, noting that he was "very definitely of the Jewish type--very heavy." The scientist they rejected, Max Bergmann, was described by the New York Times as "one of the leading organic chemists in the world."