The elder shall serve the younger.
The Hebrews who believed God have our thanks for preserving His Word and serving as His pattern nation, and a cautionary tale when their progeny despised their birthright.
Salvation is and always has been by Faith. Jew - Gentile, makes no difference.
Nothing any Christ-rejecting Jew did had anything to do with that.
Christ is the lamb slain from the foundation of the world.
We owe the Jews nothing.