Not just Demon inspired, how about Global elitist inspired?
After all, when the "Aliens" attack, only a united world government, or "New World Order" will be able to resist them, the scripture in Revelation 13 tells that it is the united world government that causes signs from the skys in oredr to decieve.
A Muse song touches on this, something about spaceships from the skys, its just our leaders in disguise.
Man had flying saucers eons ago, ancient Sanskrit documents tell of these and even give plans for, the Nazis were devolping these at Peenemuende, Vril craft based on the Hindu Vimanas, what we are seeing today could well be modern mans attempts at reverse engineering ancient technologies, could be one of the reasons why they keep crashing, allways seemed strange to me how these "Aliens" could navigate half way across the universe only to crash when they got here.
William Cooper, Behold a Pale Horse, US Navy and US Airforce, claimed the "Illuminati" invented Alien threats, though he also claims they are actually working with Aliens, Government whistleblowers, are they really whistleblowers or working for the governments to try and get us to belive they are "hiding" something from us that doesnt really exist?
Project Bluebeam, HAARP, they are plenty of references that indicate they have the technology to decieve us with that are no more bizzarre than the notion of Aliens flying light years to visit us yet only communicating by crop circles.