Long time no post! Hope all is well
I think we only have two possibilities to start with: 1) God's love is unconditional or 2) God's love is not unconditional.
If number 1), then the demand for a blood sacrifice is clearly a condition.
We did a bad thing that leads to death. According to propitiation theories of atonement, God's response to this bad thing is to not forgive as we are commanded to in the NT (i.e., Matt 18:22), but to see the death once commanded in the OT through.
Not only does it demand sacrifice in the vein of the OT, it undoes the OT's rejection of human sacrifice, which can be most powerfully illustrated in the staying of Abraham's hand after the binding of Isaac (among other, less literarily colorful commands).
The OT also clearly moves away from human sacrifice, such as the demand for child sacrifice in Exodus 22:29-30 and then the later-dated (according to the documentary hypothesis) Exodus 13:11-16, or even the more shocking retcon the author of Ezekiel employs in 20:21-26, which states that YWYH used to demand it "in order that [God] might horrify [the Isrealites]".
This is a bit tangential to my argument, but propitiation offends me as a vestige of bronze age barbarism that is - in my opinion - the least interesting part of the crucifixion narrative. It's also retrograde in its trajectory, jumping back to a pre-OT time. But suffice it to say, requiring a sacrifice in order to receive and experience God's love, is clearly a condition, thus God's love is not unconditional.
If number 2), then I am better than God.
I may fail in living up to my ideal of unconditional love, but I clearly espouse it as the highest form of love. As such, my ideals transcend what God is capable of, and if this is who God is, then I don't want to follow or set God as my example.
Let's not get bogged down in relationships that come with certain expectations. I love my partner unconditionally, but I will not marry him without conditions. We need to function in the world, and there are a couple things that need to be in place for that to work. But this is not the same as my ideal for those from whom I remain detached in a monastic sense. I want to love all mankind unconditionally. Of course, I want to hope for their salvation (which I flesh out here) and want them to grow, but my love for them - on my best days - is unconditional.
If God's love is not unconditional, then I am better than God.
My thoughts outside the debate:
If I hang my agnosticism on the hook and accept the cosmology, my preferred narrative is that sacrifice was never demanded by God, but only perceived as such by God-chasers. As we seek God, we become painfully aware of our destruction, and the blood and death is our psycho-spiritual envisioning of the necessary death - or, as I prefer, integration - of our ego. There is a clear trajectory in the Bible not of God, but of man in search of God, that gets us to an elevated place of consciousness that is characterized by unity, oneness and unconditional love. Propitiation, then is simply part of that evolution, which blindly views cause and effect in terms of crime and punishment. My distaste is not for the individual who clings to the narrative of propitiation - I have pity on that person's vicious cycles. But it comes from its elevation to "Good News" status, when we are clearly supposed to be getting beyond this pretty early on. It is not Good News. It is a vestigial archetype of a lower consciousness.