Holocaust? That was down to a Galtonian Darwinist.
Only one man designed, built and operated all those camps, kept all those people inside the fences and transported them across Europe in multiple trains, boats and road vehicles? That was a busy man...
Or, perhaps, the predominantly Catholic Germany, led by a group of Catholic Germans, inspired by generations of Christian anti-Semitism in Europe conducted the Holocaust. Whilst there were, undeniably, overtones of social Darwinism to their strategy, their motivations included Christianity.
O.