The arrival of the aliens could have been penned by a classic science fiction writer. They showed us scientific miracles millennia beyond anything we ever imagined. Their society was an orderly one where nobody goes hungry, where all citizens are encouraged to achieve their potential.
They said we could have all this and more. The price was a small one. We merely had to embrace the rational and step away from the dark superstitions of our past.
The aliens brought humanity together.
All the world's great religions became one in their declaration of jihad against the infidels from the sky.