I think you probably realise that this is not very convincing, but I accept that it is the best you can do. The text says, 'It pleased God to bruise Him; He has put Him to grief.' So according to the word of God, who put the Lord Jesus to grief?
You made a mistake. I am not here to convince you.
The text says "But the Lord desired
To crush Him, causing Him grief;
If He renders Himself as a guilt offering,
He will see His offspring,
He will prolong His days,
And the good pleasure of the Lord will prosper in His hand."
Isaiah 53 does not identify who put Him to grief. It is written from the standpoint of an observer.
It states that to "crush" Him was God's will (God's desire) as it brings about the second part of the verse. Isaiah 53 gives a hint at the who is that it was "oppression" (unjust, prolonged exercise of power).
I agree some could read verse 10 as if it were God doing the "crushing", and if they were not fluent with English they could think it necessitated that meaning. Or maybe if they read carelessly instead of studying Scripture in a serious way. They could have easily missed that this "crushing" was referred to as unjust.
But if one saw it as God "crushing" Jesus they would have to acknowledge that God was doing so unjustly because of the previous verses (the punishment is described as "oppression")
So we go to Scripture for the answer. There we learn it was the power of evil, wicked men, evil doers, but by the predetermined plan of God.
The issue is when one reads Isaiah 53:10 without reading Isaiah 53, determines one out if several possible meanings, and dismisses a host of other passages to cling to their idea.