They are always welcome to come over to the New Covenant. But they are not damned for not doing so, so long as they are faithful to the Old Covenant.WRONG!!!!!!
I don't see how any other interpretation can be true. Jesus IS the Messiah as foretold all throughout the Hebrew Scriptures. That he would be rejected of his own people was one of those prophecies. It doesn't excuse the Jews from having to believe in Him anymore than it does all the rest of humanity. Just as Peter said:
"He is the STONE WHICH WAS REJECTED by you, THE BUILDERS, but WHICH BECAME THE CHIEF CORNER stone. "And there is salvation in no one else; for there is no other name under heaven that has been given among men by which we must be saved." (Acts 4:11,12)