You mean "we", right? When you said they, surely you meant "we", yeah? For me, sometimes I'm the leader, though more often than not I'm in the crowd. I dunno, just seems funny that the automatic reaction here is "I AM THE PEPE" and people don't even stop to ask "when am I the crowd?"
So you’re safely protected from considering what he said because it can be dismissed as insane-causing. You know, many Christians also went insane throughout history - we can just dismiss everything they thought, right? Furthermore, others have thought the same as Nietzsche and not gone insane.
The weak are top-heavy on the ‘group’ survival dynamic. Nietzsche flamed exoteric Christians extremely hard as a herd of the weak sticking together for survival. Try telling an average Christian that Christianity is anything other than the generally accepted mainstream view - it can’t be done.