Dark matter is a hypothesis created to answer a gravitational problem that could be answered by a type of matter that does not interact with EM but does interact with gravity.
There was a need for an explanation.
There is NO NEED to use demons as any explanation. Bad things happen, disease, bad weather and so on. They happen at predictable rates and are already explained. Adding on a supernatural agent isn't needed. The only thing it does is give you a conspiracy theory vibe as if you know something others don't.
Demons are only in fiction. Like Orcs.
That is called a pandemic. During the black death 60 million people died. All of those things you listed happened, but much worse. During the spanish flu 25 million were killed, same things happened. Viruses are real. A new virus enters the ecosystem and a pandemic happens.
We do not need childish fantasy add-ons to actual grown up problems.
WW2 saw a huge rise in world wide crime. Russia invading Ukraine involves many crimes. Any local crime rise has local factors at play, increased poverty, less police. Again, demons are not needed as an explanation. Matter that doesn't interact with EM is already something we have seen, or weakly acting particles, like neutrinos. Demons, never. Except in fiction.
No, the world has been at constant war from the first city of Sumer to the 1900s. The recent century is the most peaceful the Earth has ever been. So to push your agenda forward you need mis-information. What does that tell you? It's wrong.
The wild West was lawless. The Revolutionary and Civil war were brutal and relentless for human life and rights.
Now things are far far better. You need to make up false narratives to push your end-of -the-world narrative.
Demons are in all sorts of fiction. Always based on imagination.
Revelation is a Persian myth Jewish thinkers took in and slowly over centuries said "God has given me a revelation"......"We too are having a final war with the devil and will resurrect at the end and live forever in paradise".
Uh, no, it's fiction when Persians thought it up and fiction when Jewish thinkers made it a Jewish story.
Persian Revelations
but Zoroaster taught that the blessed must wait for this culmination till Frashegird and the 'future body' (Pahlavi 'tan i pasen'), when the earth will give up the bones of the dead (Y 30.7). This general resurrection will be followed by the Last Judgment, which will divide all the righteous from the wicked, both those who have lived until that time and those who have been judged already. Then Airyaman, Yazata of friendship and healing, together with Atar, Fire, will melt all the metal in the mountains, and this will flow in a glowing river over the earth. All mankind must pass through this river, and, as it is said in a Pahlavi text, 'for him who is righteous it will seem like warm milk, and for him who is wicked, it will seem as if he is walking in the • flesh through molten metal' (GBd XXXIV. r 8-r 9). In this great apocalyptic vision Zoroaster perhaps fused, unconsciously, tales of volcanic eruptions and streams of burning lava with his own experience of Iranian ordeals by molten metal; and according to his stern original teaching, strict justice will prevail then, as at each individual j udgment on earth by a fiery ordeal. So at this last ordeal of all the wicked will suffer a second death, and will perish off the face of the earth. The Daevas and legions of darkness will already have been annihilated in a last great battle with the Yazatas; and the river of metal will flow down into hell, slaying Angra Mainyu and burning up the last vestige of wickedness in the universe.
Ahura Mazda and the six Amesha Spentas will then solemnize a lt, spiritual yasna, offering up the last sacrifice (after which death wW be no more), and making a preparation of the mystical 'white haoma', which will confer immortality on the resurrected bodies of all the blessed, who will partake of it. Thereafter men will beome like the Immortals themselves, of one thought, word and deed, unaging, free from sickness, without corruption, forever joyful in the kingdom of God upon earth. For it is in this familiar and beloved world, restored to its original perfection, that, according to Zoroaster, eternity will be passed in bliss, and not in a remote insubstantial Paradise. So the time of Separation is a renewal of the time of Creation, except that no return is prophesied to the original uniqueness of living things. Mountain and valley will give place once more to level plain; but whereas in the beginning there was one plant, one animal, one man, the rich variety and number that have since issued from these will remain forever. Similarly the many divinities who were brought into being by Ahura Mazda will continue to have their separate existences. There is no prophecy of their re-absorption into the Godhead. As a Pahlavi text puts it, after Frashegird 'Ohrmaid and the Amahraspands and all Yazads and men will be together. .. ; every place will resemble a garden in spring, in which
there are all kinds of trees and flowers ... and it will be entirely the creation of Ohrrnazd' (Pahl.Riv.Dd. XLVIII, 99, lOO, l07).
Mary Boyce
Zoroastrians-Their-Religious-Beliefs-and-Practices
Wow, sounds familiar. Written 1700 BC, read by Jewish people during the occupation 600 BC - 300 BC.
It's all folk tales.