We pretty much agree with one exceptionAll Israel will be saved, when the last Soul is added to the Church on earth, then all Israel will be saved
The Church is the Israel of God, children of the promised seed
Gods words clearly shows (Two Israel's) below
1.) Israel of the flesh (Jews)
2.) Israel of the promised seed (Church)
Scripture clearly teaches Israel of the flesh, they aren't the children of God, it's that simple
Romans 11:25-32 (ESV)
25 Lest you be wise in your own sight, I do not want you to be unaware of this mystery, brothers: a partial hardening has come upon Israel, until the fullness of the Gentiles has come in.
26 And in this way all Israel will be saved, as it is written, “The Deliverer will come from Zion, he will banish ungodliness from Jacob”;
27 “and this will be my covenant with them when I take away their sins.”
28 As regards the gospel, they are enemies for your sake. But as regards election, they are beloved for the sake of their forefathers.
29 For the gifts and the calling of God are irrevocable.
30 For just as you were at one time disobedient to God but now have received mercy because of their disobedience,
31 so they too have now been disobedient in order that by the mercy shown to you they also may now receive mercy.
32 For God has consigned all to disobedience, that he may have mercy on all.
Yes the Kingdom of God has been taken from National Ethnic Israel, And Given To The Church, a "Holy Nation" as clearly seen below
Matthew 21:43KJV
3 Therefore say I unto you, The kingdom of God shall be taken from you, and given to a nation bringing forth the fruits thereof.
1 Peter 2:9KJV
9 But ye are a chosen generation, a royal priesthood, an holy nation, a peculiar people; that ye should shew forth the praises of him who hath called you out of darkness into his marvellous light;
Romans 9:6-8 (ESV)
6 But it is not as though the word of God has failed. For not all who are descended from Israel belong to Israel,
7 and not all are children of Abraham because they are his offspring, but “Through Isaac shall your offspring be named.”
8 This means that it is not the children of the flesh who are the children of God, but the children of the promise are counted as offspring.
this passage refers to ethnic Israelites who are descended from Isaac
The promise is this
“Through Isaac shall your offspring be named.”