Daemon means Knowledgeable One, and truly, there is nothing negative about the Demons. Anyone who has read ancient philosophy such as Ancient Greece, they will see the Demons are very good and benevolent entities that look for the best of humanity. From Aristotle, to Plato, to many others, you will find only positive things mentioned about the Daemons. Aristotle and Plato both speak about the Good Demons, the guides, and those who uplift humanity to the Godhead and immortal life.
As such the word Demon relates many positive things. If it's a Divine being that cannot be understood, it's called a Demon, if it's the natural soul of man, it's called a Demon. Chakras are also called Demons, same as the individual character of the person, their Spirit, is also called a Demon (The Causal body of the occult and eastern tradition, that's the Demon in the Greek).
Demons are also the cosmic intelligence which keep the universe, and everything in creation, going. In contrast to Gods which are more abstract concepts, Demons are beings, actual beings in most cases. Humans who made it to a high spiritual level were treated as Demonic. It's also believed the story of Hercules is actually a story from a being who became a Demon in his lifetime, so they later turned this into a story. Hercules was called Demi-God and Demi-Gods were basically half "Demonic". The "Demonic nature" is attained when one raises spiritually, which is the attainment of the highest spiritual powers. Which is also the Devi and the Devil powers. Hercules real or unreal as a person is a simplified story as it's the story of the Magnum Opus anyway.
But there are more literal stories, such as Asmodeus and Balaam. To the late Greeks these were mysterious, but it's also known these people existed before and they became Gods. Balaam is actually in the Demonic Section now, but he was 'human' in the Golden Age. Balaam in the Talmud was of the strongest magicians of his time, who almost made the jews go extinct on his own. The talmudic tale is a lie, and defamantion, but Balaam is recognized as existent because he truly was.
The jews for lack of a better term, took everything the Demons were in Ancient Greek thought. And just gave them a different label, called them "Angels". And of course their made up construct was also said to be good and have all the above stolen qualities.
The assertion of so called 'Sacrifices' towards the Demons, is basically a creation that comes from citations around the 2nd and 3rd century after Rabbi Christ. Even with all the forgeries the christians have produced, and the burning of all the literary works on Demons, such as Porphyry's work which was eradicated fully, there is still nothing found to support the existence of evil, blood consuming Demons in the Ancient World.
The fallacious statement that Demons consume living energy from the dead is also debunked by Iamvlichus in his treatise "The Mysteries", but there is more to this. The Souls of the Demons are too advanced to be able to do anything with the gross lifeforce coming out of an inferior animal. It makes sense therein that the Daemonic soul cannot in anyway associate and/or feed from the energy coming out of dead corpses, in a pretty similar manner as to how a man cannot eat dust and expect to live. In other words the energies are fully incompatible.
Even the bible admits that the King Deities of the Goyim, our Gods, the Demons, never accepted blood sacrifices. Baal denied this act when a sacrifice was done to him. However if one makes a low level aberration, they can be fed by this energy, as this energy is low and inferior, which is the case for the jewish thoughforms. JHVH takes sacrifices pleasantly, both of man, human and child. So long they are Gentiles of course.
However what there are mentions with is that Demons act as protectors, and therefore, they can cause evil. They also highly dislike to be forgotten. As Celsus states in regards to Daemons, the Daemons need nothing to live, as they are eternal. In contrast to the jewish belief that has them as 'mortal beings'. Because the jews wished it were that way. Truly so if someone creates a thoughform, like the jewish thoughforms, it will certainly die at some point when the energy towards it stagnates. The Demons exist permanently.