So, should the outside observers who noticed the mass hysteria, death and destruction in Russia, Germany, Cambodia, Myanmar, Romania, Turkey and myriad other examples during the 20th century just have realized that they needed to "reconsider their perspective"? It's entirely possible, and in fact, highly probable, that entire mass groups of people can be manipulated into collective insanity quite easily. That doesn't make them sheep, it makes them Human, and it's up to us to be aware of this aspect of our collective psychology and point it out where visible.