Not that you will understand it but you should read in the book of Romans Chapter 9.
To the Jew first and also to the Greek/gentile go all God's blessings and curses.
God has not abandoned his people. His people have abandoned Him. If God has not abandoned His people who do you think you are to do so?
I’m a Christian who rejects the view that Christians are inferior to Jews in God’s eyes. Evidently you embrace that nasty view.