Ironically, while there really was a god or were gods that were named Moloch, Melek or some variation on that; much of the Moloch in the bible is actually referencing Mulk Baal sacrifices which are most likely to Baal Hammon, husband of Tanit, patron god of Carthage, and an El analogue. It's unclear as the political situation makes it impractical to excavate the Temple Mount but in their earliest histories El or Yahweh probably also had child sacrificial cults. Exodus 22:29 "Do not hold back offerings from your granaries or your vats." "You shall give Me the firstborn among your sons." is eerily reminiscent of the child sacrifice cults at Carthage. Note also that YHWH originates as a different god then El. Much as Athens had Zeus as top god and Athena as patron city god, Israel had El as top god and YHWH as El's son and patron of Israel. Over time El and YHWH were conflated and worship of other gods and child sacrifice was forbidden.

I find it ironic that people who attempt to rebel against God are in fact turning back to the earliest beliefs of the cult of El Elohim and his son YHWH.