What perspective are you suggesting?
Just a different one than what you currently have. There are different ways of looking at this issue.
Wouldn't the concept of "sin" be a product of free will? A person can choose to do either right or wrong. The act of choosing indicates free will doesn't it?Again, an omnipotent deity has infinite options, and thus anything would be possible. Most obviously, God could have chosen not to introduce the concept of sin, and/or could have chosen not to demand a human sacrifice of itself to appease itself.
If the consequence for sin was (and is) death, which is basically separation from God, then wouldn't it be loving of God to find a way for humankind to come back into His presence? And if God's son Jesus had the same supernatural powers as God, then it's not a human sacrifice is it? For the sake of argument, let's suppose that God created all life. It doesn't matter how it was done or how long it took. So let's not quibble over that. If God really did create all life, and if His son had the same supernatural powers as God, then isn't it reasonable to conclude that Jesus could in fact raise Himself back to life through some kind of regeneration of cells?
Is the only reason that you view it as a "human sacrifice" is because you and I can't do that kind of thing?