In any event, your position is irrational if you accept the notion of military or governmental action. It's true that D-Day, for example, was the work of individuals but most people accept the concept that the Allies(as a group)landed at Normandy. Hence, individual Syrian mercenaries may have scourged Jesus and pounded the nails but they did so, as soldiers do, while "Following Orders" of the Roman Governor who spoke for the Roman Empire.
It is the Romans who killed Christ in the sense that I've outlined, a sense that most people would understand.
Well, the Pharasees were Jewish leaders, of sort. And they tried to convince the Roman authorities that Jesus had committed treason against Caeser, because only the Romans could put someone to death. So the Jewish leaders certainly played their part. But that doesn't mean "the Jews" killed Jesus.
In a sense, it always seeemed to me that Jesus committed suicide. He wanted to die on the cross, no? He had the opportunity to avoid the cross, simply by telling the truth. If He'd simply told Pilate that, no, He wasn't calling for revolution against Caeser, He could have gotten off, no?
BTW, while I look forward to Mel Gibson's The Passion, I thought Scorsese's Last Temptation Of Christ was the most powerfully pro-Christian film I've ever seen. The first film in which Jesus was not a caricature.