Scripture refutes your claims
Rom 11:11–32 I say then, they did not stumble so that they fell, did they? May it never be! But by their trespass,
salvation has come to the Gentiles, in order to provoke them to jealousy. And if their trespass means riches for the world and their loss means riches for the Gentiles, how much more will their fullness mean? Now I am speaking to you Gentiles. Therefore, inasmuch as I am apostle to the Gentiles, I promote my ministry, if somehow I may provoke my people to jealousy and save some of them.
For if their rejection means the reconciliation of the world, what will their acceptance mean except life from the dead? Now if the first fruits are holy, so also is the whole batch of dough, and if the root is holy, so also are the branches. Now if some of the branches were broken off, and you, although you were a wild olive tree, were grafted in among them and became a sharer of the root of the olive tree’s richness, do not boast against the branches. But if you boast against them, you do not support the root, but the root supports you. Then you will say, “Branches were broken off in order that I could be grafted in.” Well said! They were broken off because of unbelief,
but you stand firm because of faith. Do not think arrogant thoughts, but be afraid. For if God did not spare the natural branches, neither will he spare you. See, then, the kindness and severity of God: severity upon those who have fallen, but upon you the kindness of God—if you continue in his kindness, for otherwise you…
Eph 2:11–22Therefore remember that formerly you, the Gentiles in the flesh, the so-called uncircumcision by the so-called circumcision in the flesh, made by hands, that you were at that time apart from Christ, alienated from the citizenship of Israel, and strangers to the covenants of promise, not having hope, and without God in the world. But now in Christ Jesus you, the ones who once were far away, have become near by the blood of Christ. For he himself is our peace, who made both one and broke down the dividing wall of the partition, the enmity, in his flesh, invalidating the law of commandments in ordinances, in order that he might create the two in himself into one new man, thus making peace, and might reconcile both in one body to God through the cross, killing the enmity in himself. And coming, he proclaimed the good news of peace to you who were far away and peace to the ones who were near, because through him we both have access in one Spirit to the Father.
Consequently, therefore, you are no longer strangers and foreigners, but you are fellow citizens of the saints and members of the household of God, built on the foundation of the apostles and prophets, Christ Jesus himself being the cornerstone, in whom the whole building, joined together, grows into a holy temple in the Lord, in whom you also are built up together into a dwelling place of God in the Spirit.
Rom 9:24–26us whom he also called, not only from the Jews but also from the Gentiles? As he also says in Hosea,
“I will call those who were not my people, ‘My people,’ and those who were not loved, ‘Loved.’ And it will be in the place where it was said to them, ‘You are not my people,’ there they will be called ‘sons of the living God.’ ”
Isa 49:6And he says, “It is trivial for you to be a servant for me, to raise up the tribes of Jacob and to bring back the preserved of Israel. I will give you as a light to the nations,
to be my salvation to the end of the earth.”
Acts 13:47–48For so the Lord has commanded us: ‘
I have appointed you to be a light for the Gentiles, that you would bring salvation to the end of the earth.’ And when the Gentiles heard this, they began to rejoice and to glorify the word of the Lord. And all those who were designated for eternal life believed.
Acts 15:7–9And after there was much debate, Peter stood up and said to them, “Men and brothers, you know that in the early days
God chose among you through my mouth that the Gentiles should hear the message of the gospel and believe. And God, who knows the heart, testified to them by giving them the Holy Spirit, just as he also did to us. And he made no distinction between us and them, cleansing their hearts by faith.
Gal 3:8And the scripture,
foreseeing that God would justify the Gentiles by faith, proclaimed the good news in advance to Abraham: “In you all the nations will be blessed.”