Sacrifice* is one ridiculous and illogical act for showing adoration to the Creator. Consider someone creating or shall we say making, something out of his own materials or in this case out of nothing. Wouldn't the Creator also be the owner of the newly created something as it came into existence by a sole act of his? (Please, let's not get into that gender issue here his/her/hir/whatever.) 

Consider a worshipper taking a perfect, live animal, ritual slaughtering it and offering as a burned offering, in some Bible versions referred to as a holocaust. Why would inflicting pain and killing of the poor animal and further transforming it into greasy smoke give pleasure to the Creator? It would not. The God would, most likely, prefer to see the animal alive grazing on a green pasture. UNLESS...

Who would take pleasure of the above act, but an adversary of the Creator, the Devil? Therefore, sacrice is Devil worship. 

Would there, is this vast Creator's Universe, actually exist something that you own? The only thing coming close to that is your free will, someone might argue your soul. What would give the Creator more agony than a freewilling being giving his soul to the Devil, His adversary?  The ultimate insult would be giving up your Soul to the Devil, in exchange for some material wealth, pervert indulgence or self gratification.

Why a new generation is turning to Satanism

"In a time of chaos and uncertainty, when traditional belief systems no longer seem to have all the answers, more and more young people are finding comfort in Satanism. But these aren’t devil worshippers who drink blood or sacrifice animals. They’re just regular people trying to squeeze the most out of life."

* King James Bible: Leviticus 1:10 (KJV) And if his offering be of the flocks, namely, of the sheep, or of the goats, for a burnt sacrifice; he shall bring it a male without blemish.

Douay-Rheims Catholic Bible: Leviticus 1:10 (RHE) And if the offering be of the flocks, a holocaust of sheep or of goats, he shall offer a male without blemish.

LINK TO Less Prone's Dictionary of the Great Deception