Well, you could put it both ways as there were two sides to World War II and both committed great evils. You could just as truthfully say he was handing half of Europe over to the Godless Communists who killed millions of Christians and persecuted the Church causing millions more to leave the faith.
All of Europe would have been swallowed up by the nαzιs. Perhaps much of the rest of the world as well. However, that is only one problem with the OP. Suggesting that The Pope saving lives, any lives, is somehow evil is at best stupid, and more likely malicious. Hence malevolent fool.