I think you may have denigrated paganism, which I know next to nothing about but I don't think they do animal sacrifices. SMH.
Paganism covers any non abrahmic religion except buddhism and yeah, they engage in animal and occasionally human sacrifice.
Hindu friends have explained to me that the many "gods" are simply
the "aspects" of the single deity-----(I am willing to accept that)----also
Zoroastrians tend to consider their dualism to be monotheism. Sacrifice
refers to the slaughtering of animals (or any living thing)-----even for hamburgers.
I have no comment on human sacrifice-----technically abortion is human sacrifice---
but so is AMPUTATION of a toe as in-----DA SURGEON SACRIFICED DA GANGRENOUS TOE