"It would seem that humans need a common motivation, namely a common adversary, to organize and act together in the vacuum; such a motivation must be found to bring the divided nations together to face an outside enemy, either a real one or else one invented for the purpose."

"Humans only truly unite when faced with a powerful external enemy..."

"At this time a new enemy must be found, one either real or invented for the purpose..."

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Of course, the so-called ETs are demons or evil spirits.