Those that you call "the lost sheep of Israel" called out "Crucify Him," "Crucify Him," and then the pagan soldiers drove nails through his hands and feet and crucified him. They both are in the same boat and just as guilty.
"He came to his own and his own received him not."
Israel is a wicked and a lost nation in need of Christ.
"The God of Abraham, and of Isaac, and of Jacob, the God of our fathers, hath glorified his Son Jesus; whom ye delivered up, and denied him in the presence of Pilate, when he was determined to let [him] go." (Acts 3:13)