He didn't miss the fact - his entire work is based on the cleverness and creativity of the Judean slave revolt in morality [as he calls it] and how this totally destroyed the old roman/greek decadent aristocratic order for the last 2,000 years. His point is that if people give up Christian ethics - for science or any old mumbo jumbo crap - there will be issues - like WW1 for example. I just spent about 12 months studying Nietzsche for fun - only in the last few weeks have I felt that I have really understood it - even then - teacher's notes from medium were essential - to misinterpret Nietzsche or misunderstand him is normal I am afraid - he is exasperating !! You are in good company.