A person can have faith in anything. Faith is very powerful and faith itself gives "life" to these 'things', it brings them up out of the abyss of the human imagination (so to speak).
The ancient gods themselves, such as the Egyptian, Sumerian, Babylonian, Hindu, etc., are depicted as "monsters" or other "creatures" in art and myth, but that is only allegory. They represent natural forces that exist in the real world and then are typified in the individual psyche and the body politic using symbolism. Most of the Assyrian and Babylonian gods directly represented the 'thing' itself... The word "Baal" simply means "Lord" or "Master", or more appropriately, it means "husband" (because the 'people' are the wife), and was just the patron deity of any specific thing. Before Baal it was "El", as in "El Shaddai" or "Elohim". The old testament makes many statements which grants recognition to other gods as if they exist.
The Egyptian Goddess "Ma'at" was just the word for the sky, deified. And there is a very complex cosmology that is also in agreement with Biblical Hebrew cosmology (which is much closer to Babylonian).
Where the Egyptians called it "Ma'at", and the Babylonians called it "Anu", it is written as the "firmament" in Genesis.
They did not practice Astrology, they practiced Astrolatry; which is the practice taking a deified principle such as a "King" or other ruler and assigning it to a natural phenomena such as the sky, stars, and the like, granting some kind of "legitimacy" to the ruling class and it's hierarchy. Only the common folk believed that the stars and other heavenly bodies were had actual influence over human affairs. It's magic/idolatry, and it's very advanced and complicated.
Satan is called the Prince of the Powers of the Air in one scripture. This is not the physical air, it's the symbolic air, the "mood", today we still call it the "atmosphere"...
Is there no such thing as "atmosphere" (mood)? Is there no such thing as "Satan?" If there is, what is 'it'? Satan is the "flesh"... The flesh determines what the pervading tone or mood of a place, situation, or work of art is, and the flesh is influenced by many other so-called 'powers', terrestrial or celestial (symbolically), and those powers are in a hierarchy. Demonology/cosmology is psychology. It always was. Just because people run wild and literalize the myths does not mean there is no meaning or reality to it. The myths and superstitions are powerful in themselves just as deception is powerful. But the Bible contains cosmology and says that these powers and 'authorities' are real, it just doesn't call the "Aer" (atmosphere) "Shu" (Egyptian), "Enlil" (Babylonian) or "Vata" (Hindu).The Egyptian 'ruler' of darkness and chaos is "Kek" and it was a frog, in the Bible this force is called Leviathan—is this also superstition or is an actual thing and does it have some kind of symbolic 'ruler' who manifests itself on earth in strange ways?
SATUS MENTIBUS OBVIA = "Start Encountering Minds"
13 And I saw three unclean spirits like frogs come out of the mouth of the dragon, and out of the mouth of the beast, and out of the mouth of the false prophet.
14 For they are the spirits of devils, working miracles, which go forth unto the kings of the earth and of the whole world, to gather them to the battle of that great day of God Almighty.
So we are in agreement that there are no hollywood-style demons or ghosts or goblins, so then, is the Bible nonsense or does it actually mean something? There is no such thing as dragons or beasts with seven heads and ten horns, and spirits cannot be seen so how can they look like frogs? And how can they perform miracles? Are dreams and visions completely meaningless or can they be interpreted? Are parables meaningless? Where is the line drawn?