Nietzsche never said that as far as I am aware. He said:
“The youthful Jew of the stock exchange is the most repugnant invention of the whole human race.”
If you want to know lived Christianity read your Kierkegaard, not Nietzsche: the bad end he came to summarizes his thought and is its inevitable outcome.
Nietzsche is dangerous for adolescents and those who have emotional and socialization problems: he instills hatred for the other, contempt for ordinary people, the arrogance of the know-it-all philologist who has lived immersed in books, brooding constantly stumbles and wants to preach to those who instead live life to the fullest between work, family and social duties.
Nietzsche has identified the downfall of christianity at his time and accuratly located the need for a spiritual project, in a way where others completely failed. You can moralise about Nietzsche all you want, but his is the only game in town. He had the foundation to make the first steps to reconnect with the greeks/romans and understood that a new man will have to come. It's inevitable.
If you really want to read Nietzsche, at least avoid Ecce Homo, Antichrist and the posthumous fragments, all result of his incipient madness, which finally exploded with his famous embrace of the horse (evidently mistaken for his "ubermensch" ) ..... LOL.