"We know Jesus was the Messiah."
Uh, nooo. You claim he was the Messiah, you don't know he was.
"The Jews don't know He was."
Because according to your fictional stories he failed the fucking test, just like all the other nutters wandering around at the time claiming to be the Messiah.
There are some very explicit things your godboy Jesus was supposed to have done; he didn't do them. Hence he's not the Messiah.
"The Jews are God's Chosen people. Surely He would give them every kind of warning, big and small, to make them come to Christ to be saved, right?"
Why would he want his "chosen people" to follow a false prophet? There's prohibitions against such things, you know.
"Maybe the reason they have been so severely treated is because they refuse to see Him as their Savior, which we know to be the truth."
They refuse for very good reason (as far as you can have a "good reason" when talking about religious tripe). Your buddy Jebus failed miserably at fulfilling all of the prophecies about the coming Messiah.
"Most people like to take pity on them for what happened, but if this was a message to them? So what do you think?"
I think you're a fucking moron who knows less about Judaism than he does about Christianity which probably doesn't say much since I suspect you're like most Christians and don't know a damned thing about Christianity that your pastor hasn't spoon fed you.