If the point had only been to exterminate the Jews, that is what they would have done.
But that is not what they did.
What they did included that, but also and with unmistakable intent, politically and socially institutionalized sadism on a vast scale.
Extermination was not the capstone, but the end, of the Reich's orgy of cruelty toward the Jews.
Eugen Kogon, The Theory and Practice of Hell.