Some people say that Christianity has been misunderstood. It looks to me more like it is Christianity which has misunderstood! The world, perhaps even Christ!
I’m not associating Christ with Christianity. When Nietzsche wrote “Der Anti-Christ” (usually translated as “The Anti-Christ”), his polemics was directed more to Paul and Christendom/Christianity, (a note in the translation says that it is probably more fitting to translate it as “The Anti-Christian.”) The same with Kierkegaard, his beef was with Christendom (the bureaucracy of Christianity). Christianity, as we know it today, is according to biblical scholarship, largely the work of Paul the Apostle.