 Dmowski had advocated emigration of the entire Jewish population of Poland as the solution to what he regarded as Poland 's " Jewish problem " , and over time came to argue for increasing harsh measures against the Jewish minority , though he never explicitly suggested killing Jews . He opposed physical violence , arguing for the boycotts of Jewish businesses instead , later supplemented with their separation in the cultural area ( through polices such as <unk> <unk> ) . Dmowski made anti @-@ Semitism a central element in Endecja 's radical nationalist outlook . Endecja 's crusade against Jewish cultural values gained mounting intensity in antisemitism of the 1930s , but there were no major pogroms or violent attacks on the Jews in Poland until the German Nazis occupied Poland and made it their mission in 1939 – 44 . 
