Is God unfair in His election?

I was reading a few commentaries on Exodus, and reading on the passage where God says Israel is to be His "Treasured Possession". One author views this view of Israel's election as "problematic", since it presents a "particularistic vision of a people that God cares for more than any other", and argues it raises questions such as "Why has God chosen to rescue this one group among all the downtrodden peoples of biblical antiquity?" The author goes on to say that there is a "moral tension inherent in the notion of the exclusivity of Israel's relationship with God" (Exodus, Carol Meyers, Page 146-147).

Let me ask - what is meant here by "moral tension"? Does that mean that there is something "immoral" or "unethical" about God's choosing Israel above all peoples? This is indeed a distorted understanding of God! There is no "moral tension" with God choosing Israel above all peoples: God would be perfectly righteous if He had never chosen Israel, nor Abraham, nor Noah, and completely wiped out all human beings from the face of the earth. He would still be fair, and He would still be good, and He would still be just. Why? Because we have all from Adam sinned against Him, and violated His standards. We all deserve to be rejected.

But it is His GRACE that has chosen us who believe from before the foundation of the world, and which will continue to save those whom have not yet come to the faith of Jesus Christ, all whom God has predestined to be conformed to the image of Christ. And it is not as though His choosing of Gentiles have failed, for a partial, temporary hardness has come upon the nation of Israel came after Christ's first coming, so that the fullness of Gentiles may be brought in. So, in this sense, God is "fair", in giving all the world the chance to be saved, not just Israel.

But God is righteous in choosing His people over others because Jesus Christ has died for their sins. Jesus Christ has been rejected for His people, so that God may show favour to His people whom God has chosen from before the foundation of the world. When we understand that Jesus Christ experienced the wrath, the curse, the rejection and the hatred of God for His people, then the issue of election is no longer "problematic" or a "moral tension". God shows "favouritism" to His people, yet He still remains "fair", because Jesus Christ was forsaken by His Father on the Cross for the elect.

The Bible even in the New Testament leaves "Israel" as the chosen people of God, Gentiles being wild olive shoots that have been grafted into Israel's election through Jesus Christ our Lord: "For neither circumcision counts for anything, nor uncircumcision, but a new creation. And as for all who walk by this rule, peace and mercy be upon them, and upon the Israel of God." Galatians 6:15-16.