Can someone please help me on my "the popes and nazism" religion handout?

i have 4 questions that i cant find: 1.should the pope have gone against civil authorities and hidden jews as he did? why? 2. In hindsight,should the pope have denounced Nazi treatment of jews directly? 3. Should the pope have condemned the Nazi regime and called upon all Catholics to resist Nazism in whatever way they could? 4.Should the pope have called for the use of violence to overthrow Hitler and the Nazi regime?