Wait, Wasn't He "Hitler's Pope"?

The 1941 The New Republic reported on the Catholic response to the German euthanasia campaign. Not surprisingly, the Pope came out against euthanasia and ordered that his decree be read in churches all over Germany. And then:

The reply of the Nazis was drastic and immediate. More than three hundred Catholic priests were imprisoned in concentration camps, and the publication of the decree in the churches of Germany was forbidden.

I'm confused: wasn't the Catholic Church complicit in the crimes of Nazism?