Wake up, dude. The Old Testament "God" you're talking about was just Satan in disguise. Of course he demanded blood sacrifice.
Blood sacrifice was NEVER prescribed by the actual God.
The Old Testament should NEVER have been bound together in the same volume as the New Testament and the Protestants are IDIOTS for blindly following the Catholic Church's example in that regard.
Anybody who thinks the King James version of the Bible is the authoritative 'Word of God' needs a lot of redpilling.