[Nietzsche] had the good manners to despise Christianity, in large part, for what it actually was--above all for its devotion to an ethics of compassion--rather than allow himself the soothing, self-righteous fantasy that Christianity's history had been nothing but an interminable pageant of violence, tyranny, and sexual neurosis.

…he hated Christianity itself principally on account of its enfeebling solicitude for the weak, the outcast, the infirm, and the diseased; and, because he was conscious of the historical contingency of all cultural values, he never deluded himself that humanity could do away with Christian faith while simply retaining Christian morality in some diluted form, such as liberal social conscience or innate human sympathy.

– David Bentley-Hart, Atheist Delusions