Just what are you implying with this photograph of Christian Nazis and Muslim leaders collaborating? That picture offers no new revelation that would soften the impact for earnest Christians who came to realize the scope of evils their national German Christian base was involved in. Many Muslims hated the Jews as much as the Christian Nazis did;but so, too, did the "good Christian" citizens of many European countries.
Considering the anti-Semitic waves of hatred that enveloped much of Europe at the time, it is doubtful that the killing of the Jews,especially at the hands of fellow Christians, was enough to propel a nation to war. Had the typical physiognomy of the Ashkenazi Jew been more Semitic, other European nations may have offered even less resistance to Nazi Aggression than they did. However, most of those Jews were physically indistinguishable from other Europeans, including the Germans. Prudent governments saw no benefit to risking a Nazi usurpation of their power where ethnic cleansing and perverted euthanasia would be imposed ruthlessly and arbitrarily. That might affect leaders and their families.
Other European Christian nations and atheistic Soviet Russia were forced to become allies in an attempt to arrest the armed aggression of Christian Germany. The USA reluctantly entered the war when most of the fighting was over even as their domestic Christian brothers in the South were conducting pogroms similar to kristal nacht on blacks.
So, in contemplating the Indian massacres, slavery, an attempted genocide on the Jews, atomic bombings and other" conservative traditions I think I'd rather have Muslims for neighbors than White Christians.