According to Nietzsche, the philosopher Arthur Schopenhauer, whom he greatly admired, had already successfully demolished and discredited the notion of the Christian God. Schopenhauer had shown the notion of the Christian God to be a contradiction, since it was totally incompatible with the true nature of reality as it expressed itself in nature and in humanity; viz., as a blind, endlessly striving will-to-live which was constantly at war with itself.
For Nietzsche, Schopenhauer had, for all intents and purposes, "killed" the idea of the Christian God and all possibility of continued belief in him among the intellectually honest. Thus, Nietzsche simply asserted, quite bluntly and sensationally, what he thought Schopenhauer had already demonstrated in his philosophy; viz., that "God is dead." But, to Nietzsche, Schopenhauer had not gone far enough in his thinking. Schopenhauer had "killed" the Christian god and had asserted the sole reality to be the will-to-live, but then, paradoxically, he continued to extoll the virtues of the Christian "herd-morality" and its will-to-nothingness. Schopenhauer had not thought through to the bitter end the full consequences the "death" of the Christian God ought to have had for the values of the Christian "herd-morality"; be it the strictly religious, or secularized, versions of the "herd morality."
Since the only basic reality expressing itself in nature and in humanity was a blind, endlessly striving will-to-live, Schopenhauer should have bravely accepted this inescapable fact of life. He should have not recommended that humanity try to deny the will-to-live or try escape from it by pursuing an ascetic will-to-nothingness. Instead, asserted Nietzsche, he should have encouraged strong, superior humans to actively and deliberately embrace the will-to-live, as being synonymous with their own nature, and to give it conscious direction. Thus, claimed Nietzsche, would Schopenhauer's will-to-live be transformed into humanity's conscious, deliberate will-to-power. The will-to-power is, according to Nietzsche, a universal drive, found in all of humanity. It prompts the slave who dreams of a heaven from which he hopes to behold his master in hell no less than it prompts the master. Both resentment and brutality are expressions of it. As Nietzsche proclaimed: "This world is the Will-to-Power -- and nothing else! And you yourselves, too, are this Will-to-Power -- and nothing else!"
According to Nietzsche, the Christian God had not only served to sanction and legitimate the values of the Christian "herd morality," but had also provided the inspirational ideal or goal toward which the adherents of those values strove. Now, with the "death" of the Christian God, the Christian value system was no longer tenable in any form, be it religious or secular, and a new value system could take its place.
Unlike the atheism of the extreme political left, which relinquished allegiance to the values of the Christian "herd morality," in their religious form, but preserved allegiance to the values of the Christian "herd morality" in their secularized form, the atheism of the extreme political right (a more rigorous, consistent, and honest form of atheism according to Nietzsche) relinquished allegiance to the values of the Christian "herd morality" in both their religious and secularized forms.
Thus, by extending and correcting Schopenhauer's thought, Nietzsche created the atheism of the extreme political right -- an atheism that he thought would ultimately require the creation of a new inspirational goal and a new, neo-aristocratic value system for select Europeans.