“If the question “who killed Christ” refers to direct human instrumentality, then it is the Romans, but if the question is who had Him put to death, then it is the Jews:”
If I say to myself, “It was all just a terrible mistake that snowballed out of control”...I can see how things could end up being so controversial because who among them would have wanted to take the blame for something so hideous? I think the perpetrators had “MeToo” syndrome, or something similar to that. It would have taken another Jesus to keep this Jesus off of the cross.