Taken from here
I don’t think your conclusions are warranted because of the following reasons:
1) God’s favoritism for a specific people does not automatically imply that God loves this people more than other people.
A plot that it is repeated once and again in the Old Testament is God’s choosing a specific individual (a prophet, a king) to play a specific role in the history of the salvation.
This individual is chosen to do God’s will in a specific situation, which often benefits other people. For example, King David is chosen to establish the nation of Israel so the people of Israel reaps the material and spiritual benefits of King David’s actions. So it’s not that this individual is better or more loved that others: it fits better in God’s salvation plan.
The same way, the people of Israel is chosen because it fits better in the salvation plan of God. Old Testament prophets prophesized that all peoples would end up worshiping the God of Israel.
So the people of Israel is a means for all the mankind to have access to salvation, which was the goal all along, since Adam and Eve (as representatives of mankind) sinned.
2) It’s true that Jesus expresses favoritism for the Jews once and again. The reason is “I was sent only to the lost sheep of Israel” (Matthew 15, 24). It is clear that Jesus’ mission was to establish the Kingdom among the Jews.
HOWEVER, Jesus announces once and again that the Kingdom will soon arrive to the Gentiles and that the Jews are going to be replaced by people from all over the world as a People of God (see John 4, 21-24), the Parable of the Great Banquet (Matthew 22, 1-14 and Luke 14, 15-24.), the Parable of the Wicked Husbandmen (Matthew 21, 33–46, Mark 12, 1–12 and Luke 20, 9–19) and other places.
While the mission of Jesus was for the Jews, this mission was only the start of the Kingdom and soon after Jesus “the gospel of the kingdom would be preached in the whole world as a testimony to all nations” (Matthew 24, 14).
3) And this is a very common mistake. Today’s Jews are not the Jews of the Bible. They have the same name and they are related but they are not the same.
In times of Jesus, most Jews lived in the diaspora. As Rodney Stark statistically proved, the vast majority of these diaspora Jews converted to Christianity. Some of the Jews of Israel also converted to Christianity.
The Jews that rejected Jesus kept on with their ancient rituals in the Jerusalem Temple until the Temple was destroyed. Then, during the second century, they created a new religion, based on the Talmud, since the center of the Old Testament religion was the Jerusalem Temple and this Temple was no longer available.
Today’s Jews are the descendants of the people that converted to this new Talmudic faith. They are not the Jews of the Bible in a genetic or religious way. Not in their customs. For example, the Jews of the Bible were patrilineal while today’s Jew are matrilineal. As Ronz Unz, who is a Jew, says:
“traditionally religious Jews pay little attention to most of the Old Testament, and even very learned rabbis or students who have devoted many years to intensive study may remain largely ignorant of its contents. Instead, the center of their religious world view is the Talmud, an enormously large, complex, and somewhat contradictory mass of secondary writings and commentary built up over many centuries, which is why their religious doctrine is sometimes called “Talmudic Judaism.”
https://www.unz.com/runz/american-pravda-oddities-of-the-jewish-religion/
The foundational myth of this modern tribe says that they are the same people as the people of the Bible. But this is simply not true. Not from a genetic point of view nor from a religious point of view.
The ignorance of Christians about this topic is astonishing. Christian people go to Mass and they imagine that the characters appearing in Sunday’s Mass Readings belong to the same ethnic group as modern Jews. It’s like believing the characters of the Iliad belong to the same ethnic group as modern Greeks.