As concerning the Gospel, they are enemies for your sakes:This is patently false and you are also contradicting Scripture. So what exactly are you trying to prove?
ROMANS 11: THE SALVATION OF ISRAEL IN THE FUTURE
25 For I would not, brethren, that ye should be ignorant of this mystery, lest ye should be wise in your own conceits; that blindness in part is happened to Israel, until the fulness of the Gentiles be come in.
26 And so all Israel shall be saved: as it is written, There shall come out of Sion the Deliverer, and shall turn away ungodliness from Jacob:
27 For this is my covenant unto them, when I shall take away their sins.
28 As concerning the Gospel, they are enemies for your sakes: but as touching the election, they are beloved for the fathers' sakes.
29 For the gifts and calling of God are without repentance.
30 For as ye in times past have not believed God, yet have now obtained mercy through their unbelief:
31 Even so have these also now not believed, that through your mercy they also may obtain mercy.
32 For God hath concluded them all in unbelief, that he might have mercy upon all.
33 O the depth of the riches both of the wisdom and knowledge of God! how unsearchable are his judgments, and his ways past finding out!
34 For who hath known the mind of the Lord? or who hath been his counsellor?
35 Or who hath first given to him, and it shall be recompensed unto him again?
36 For of him, and through him, and to him, are all things: to whom be glory for ever. Amen.
The physical seed was made enemies of God, that God might be released from His covenant with them and go into all the world to save them that believe, even as Pharaoh was made His enemy, that He might deliver the physical seed with many signs and wonders and get honor for Himself.
but as touching the election, they are beloved for the fathers' sakes.
Be cause they are beloved for the fathers' sake, that rebellious physical seed, though yet enemies of God, may still be grafted in again to Israel and Jacob as seed of faith, if they abide not in unbelief. The Egyptians had no such fathers to be beloved by, so they were given no such place of redemption with God.
The physical seed of Abraham and Hagar mat become the seed of faith of Abraham and Sarah, because of their fathers, not because they themselves are of promise anymore with God.
For the gifts and calling of God are without repentance.
The physical seed drawing back at the mount, nor in crucifying the Lord, would prevent God having seed of promise by Abraham as Isaac, who would now be seed of faith by Jesus.
God did not repent of His promise to Abraham, nor His call to seed of Abraham to be holy as He is holy, even when the physical seed had His beloved Son killed, who came to confirm that promise to them, and was rejected.
The gifts and calling of God with promise to Abraham was not repented of by God, and is now to the seed of faith, while the physical seed have removed themselves forever from the promise, except they repent and believe the gospel of Jesus Christ.