Amos 5:26 But ye have borne the tabernacle of your Moloch and Chiun your images, the star of your god, which ye made to yourselves.
Moloch/Molech worship wasn’t limited to Canaan. Monoliths in North Africa bear the engraving “mlk”—often written “mlk’mr” and “mlk’dm,” which may mean “sacrifice of lamb” and “sacrifice of man.” In North Africa, Moloch was renamed “Kronos.” Kronos migrated to Carthage in Greece, and his mythology grew to include his becoming a Titan and the father of Zeus. Moloch is affiliated with and sometimes equated to Ba’al, although the word ba’al was also used to designate any god or ruler.
https://www.gotquestions.org/who-Molech.html
The name Molech is from the word for sacrifice of lamb or sacrifice of man. It is a religion all about blood sacrifice.
“Blood sacrifice is not a term that I use and I would argue it as vague and somewhat useless. Ritual bloodletting would be more appropriate in this context, if I am reading the question correctly, as it is general enough to include many things, such as: ritual cutting of one’s own flesh to create a bond or pact with a spirit; ritual cutting of a sexual partner’s flesh in a ritual or ceremony; ritual cutting of an animal (not for the purpose of killing, but for producing the essence of a specific animal’s life force); “marking” a person with your own essence under certain ritual circumstances, whether for positive (protective, warding) or negative (hostile, magically infectious) reasons. Similarly cutting one’s self to feed one’s own blood to a specific deity — exactly as you might use, say, a goat, but without an immediate death — could be considered a sacrifice, and is still generally categorizable as “bloodletting.” I would hesitate to call anything that does not involve intentional death a sacrifice, in personal use of the term, but I would consider “the feeding or offering of blood, without death, to a deity or spirit” to be a form of sacrifice when circumstances call for it. Note: In many traditions, there are HEAVY restrictions upon forms of bloodletting of this sort, as the spirits and deities in question will take this as indication that the person being bled is “food,” and they will be regarded as such.” — Anomalous Thracian, Thracian Exodus
https://wildhunt.org/2014/04/perspectives-blood-sacrifice.html
1Kings 18:28 And they cried aloud, and cut themselves after their manner with knives and lancets, till the blood gushed out upon them.
This was the prophets of Baal.
Yes there were many over lapping dirties in many cultures by different cultures around the world. Some would borrow from predecessors beliefs or travel and spread their religions. I think most of it was that the demon enjoyed the worship and spread it on their own throughout the world. The big furnaces, like the one made to the Babylonian false god Nebuchadnezzar, was likely placed at the base of his giant image, because that was a common construction found in archeology of other large idols.
Daniel 3
Burning alive and torturous methods of blood sacrifices were favorites of paganism and other religions.
I like the chapter of I Kings 18.
Elijah was right and was one of the greatest prophets as described.
If the general public thinks that pagans and satanists no longer practice these same rituals, it's because they don't get that information in pop culture. Whether it's a mock sacrifice for the masses at the large Bohemian Grove gatherings, doesn't mean they aren't real at other times. The devil always uses entertainment, music, plays etc to describe what is done occulticly, in secret.
A handful of members of those groups have exposed the rituals they used to be.a part of. It is easier for the general public to ignore that and side with the devil as harmless fun .