How is it you ignore the Gentiles being made of one body with believing Jews
1 Corinthians 12:12–20 (LEB) — 12 For just as the body is one and has many members, but all the members of the body, although they are many, are one body, thus also Christ. 13 For by one Spirit we were all baptized into one body, whether Jews or Greeks, whether slaves or free persons, and all were made to drink one Spirit. 14 For the body is not one member, but many. 15 If the foot should say, “Because I am not a hand, I am not a part of the body,” not because of this is it not a part of the body. 16 And if the ear should say, “Because I am not an eye, I am not a part of the body,” not because of this is it not a part of the body. 17 If the whole body were an eye, where would the hearing be? If the whole were hearing, where would the sense of smell be? 18 But now God has placed the members, each one of them, in the body just as he wanted. 19 And if they all were one member, where would the body be? 20 But now there are many members, but one body.
Fellow citizens
Ephesians 2:11–22 (LEB) — 11 Therefore remember that formerly you, the Gentiles in the flesh, the so-called uncircumcision by the so-called circumcision in the flesh, made by hands, 12 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. 13 But now in Christ Jesus you, the ones who once were far away, have become near by the blood of Christ. 14 For he himself is our peace, who made both one and broke down the dividing wall of the partition, the enmity, in his flesh, 15 invalidating the law of commandments in ordinances, in order that he might create the two in himself into one new man, thus making peace, 16 and might reconcile both in one body to God through the cross, killing the enmity in himself. 17 And coming, he proclaimed the good news of peace to you who were far away and peace to the ones who were near, 18 because through him we both have access in one Spirit to the Father. 19 Consequently, therefore, you are no longer strangers and foreigners, but you are fellow citizens of the saints and members of the household of God, 20 built on the foundation of the apostles and prophets, Christ Jesus himself being the cornerstone, 21 in whom the whole building, joined together, grows into a holy temple in the Lord, 22 in whom you also are built up together into a dwelling place of God in the Spirit.
You are disobedient to God, who states
1 Corinthians 12:21–26 (LEB) — 21 Now the eye is not able to say to the hand, “I do not have need of you,” or again, the head to the feet, “I do not have need of you.” 22 But by much more the members of the body which are thought to be weaker are necessary, 23 and the parts of the body which we think to be less honorable, these we clothe with more abundant honor, and our unpresentable parts come to have more abundant presentability, 24 but our presentable parts do not have need of this. Yet God composed the body by giving more abundant honor to the part which lacked it, 25 in order that there not be a division in the body, but the members would have the same concern for one another. 26 And if one member suffers, all the members suffer together; if a member is honored, all the members rejoice with it.
and BTW
Romans 11:7–11 (LEB) — 7 What then? What Israel was searching for, this it did not obtain. But the elect obtained it, and the rest were hardened, 8 just as it is written, “God gave them a spirit of stupor, eyes that do not see and ears that do not hear, until this very day.” 9 And David says, “Let their table become a snare and a trap, and a cause for stumbling and a retribution to them; 10 let their eyes be darkened so that they do not see, and cause their backs to bend continually.” 11 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.