The physical seed of Abraham is an identifiable, ethnic group of individuals who are separate from the Church and to whom promises have been made and to whom those promises will be kept.
Now if you continue to insist on denying this truth, in the face of Scripture that has been given to you that shows that God has made promises to this specific group of people who are not the Church, then it is up to you to demonstrate how those Scriptures that have been given to you are false and explain to God where you feel you get the authority to decide that those parts of Scripture that detail His plans for His chosen people are false.
It is up to you to explain how you have the omniscience to deny what God has said, and substitute your own finite, fallen "wisdom" for what God has said is going to happen. The fact that you embrace a doctrine that is in total contradiction with the word of God and is therefore demonic and you refuse to accept the truth you have been given puts you in an extremely dangerous place
And, after all of this, and after you have had repeated opportunities to accept the Bible as God wrote it, even though you don't like it the way God wrote it, you are back to where you began: denying the Word of God, and spiritualizing that which God wrote as literal, and lying about who God is and what He has said and promised. After all this, we are back to the base truth, that those who will call God a liar and say that He deceives people and breaks His promises are described beautifully in God's Book:
And even if our gospel is veiled, it is veiled to those who are perishing, 4 in whose case the god of this world has blinded the minds of the unbelieving so that they might not see the light of the gospel of the glory of Christ, who is the image of God. (2 Corinthians 4:3,4)
But a natural man does not accept the things of the Spirit of God, for they are foolishness to him; and he cannot understand them, because they are spiritually appraised. (1 Corinthians 2:14)
I'll refer you to post 30 so that you can see the actual danger you have chosen to put yourself in. Denial of Scripture carries a very high price.
Good luck.
Words such as "false" "wrong" "error" do not attribute motive.
Discuss the issues all you want, but do not make it personal.