Religion and Fascism Is this relevent Nazis arrested and killed thousands of Catholic clergy 18 of the priests in Poland were killed eventually consigning thousands of them to concentration camps 2600 died in Dachau alone 106 Although Jews were obviously the greatest and primary target Hitler also sent Roman Catholics to concentration camps along with the Jews and killed 3 million Catholic Poles along with three million Jewish Poles 107 Were the Catholic Poles killed because they were catholic or because of their Polish ethnicity Is there any evidence they were killed because of their religion