I'm wondering if an understanding of the bible's teaching about the trinity and the sovereignty of God might be helpful on this one. I agree that the bible usually says that God planned for Jesus to die in our place, and does not blatantly use the exact words "God killed Jesus."
But if Father, Son and Holy Spirit planned the atonement in eternity, if Jesus offered his life willingly and if God is in control of everything, it would seem to me to somewhat neutralise objections to this concept.
Sitting in church this morning, the story of Joseph popped into my head and I was reminded that Joseph blatantly says to his brothers who had sold him as a slave
... do not be angry with yourselves for selling me here, because it was to save lives that God sent me ahead of you ... So then, it was not you who sent me here, but God. Genesis 45 And in Genesis 50 Joseph says: 20 You intended to harm me, but God intended it for good to accomplish what is now being done, the saving of many lives.
While the bible may not use the ipsissima verba, the concept would seem to be found there. I think this needs to be nuanced in such a way that we understand that God is using the actions of evil men for his own purposes, it was his grand plan,and I think it would be proper to say to the chief priests and scribes and Herod and the others "It was not you who took Christ and crucified him, but God. You intended to kill the prince of glory, but God intended it for good to accomplish the saving of many lives."
Joseph's statement did not absolve his brothers from being responsible for their evil activity and such a statement to those who took Christ and put him to death would also not free them from being held accountable for killing the Son of God.
I appreciate the comments that have been made on this topic concerning exercising the same restraint which the bible uses, but think that if you consider all of the biblical material on the atonement, some pretty strong statements are made there. We should not go beyond Scripture, but I think the analogy with the story of Joseph is a useful one to ponder.