First of all, it seems that you and I agree that Israel is under a blindness right now. Like I said, after the rapture all attention will be on Israel. Their rejected King is waiting for them to repent as a nation. It will take nine wars during the endtimes before they do it. When they turn to Jesus whom they pierced and say "blessed is he who cometh in the name of the Lord".... only then will their Lord descend from heaven along with the saints (OT believers and Church-Age believers) and defeat the gathered enemies with the breath of his mouth.
Many confused people will survive the GT and be allowed into the Kingdom based on how they treated the Jews .... Christ's brothers. (Sheep and Goats Judgement,aka Judgment of the Surviving Natiuons)
During the millennium, Jesus will reign as king over Israel and all the nations of the world (Isaiah 2:4; 42:1). The world will live in peace (Isaiah 11:6–9; 32:18), Satan will be bound (Revelation 20:1–3), and, at the beginning, everyone will worship God (Isaiah 2:2–3). The purpose of the 1,000-year reign is to fulfill various promises God made to the world. Some of these promises, called covenants, were given specifically to Israel. Others were given to Jesus, the nations of the world, and creation. Jesus’ 1,000-year reign will be a time of promises kept.
Reasons for a Millennial Age or "Dispensation" :
To exalt Christ as King over all the earth and to usher in His kingdom (Zech 14.9, Rev 12:5). The Lord’s prayer ‘Your kingdom come … on earth’ is fully realized. Christ’s rule brings a time of universal peace and the absence of war (Isa 2:4)
To provide a forum for the fulfilment of the unconditional covenants: Abrahamic, Davidic, Palestinian and New Covenants: Israel becomes a great nation, Christ sits on David’s throne, and God writes His Law on the hearts of both Jew and Gentile
To bless the land: Israel becomes very fruitful as she receives abundant rain at the right times (Ezek 34:26-27, Isa 41:18)
To restore the nation Israel to her intended place as God’s servant and witness amongst the nations (Isa 43.10). The nation will become “priests of the Lord” to administer God’s law from Jerusalem (Isa 2:3, 61:6, 66:19)
To provide a period of perfect communion between the saints of the first resurrection and their Lord (Rev 20.4-6)
To enable millions of Gentiles to come to know the Lord. The Lord’s people will not only be Israel, rather, they will come from many nations (Zech 2.11)
To provide a ‘day of rest’ for nature. Not only will mankind be in near-perfect communion with the Lord, but also will nature. It is probable that imperfect aspects of nature, such a drought, locust, earthquake and flood will be removed (except when ordained as judgement on a nation). Nature will be at peace (Rom 8.21)
Israel in the Millennium: God’s Witness and Servant
From her birth in the book of Genesis to the present-day, Israel has struggled to fulfill her role as God’s witness and servant in the world. But in the millennium she comes into God’s full blessing, as given to her while on the Exodus journey to Canaan from Egypt. There is a beautiful song of this blessing in the book of Numbers, chapter 6 verses 24-26:
Note that today’s true church will no longer be on earth in the flesh: she will have been taken to be with Christ at His coming (the first resurrection) and returns to earth with Christ as immortal beings (saints). So it is left to remnant Israel (that Jewish remnant from the tribulation) to be God’s witness in the world, and the spiritual blessings of millennial Israel will be the same as those of the present-day church.
Millennial Israel will be the sons of God (Hos 1.10) – just like today’s true church
Millennial Israel will be under the mediatorship, sacrifice and priesthood of the New Covenant, where God’s law is written on their hearts (Jer 31.31-34, Rom 11.26,27, Heb 8.8-12) – just like today’s true church
Millennial Israel will be God’s witness in the world and evangelize the Gentile nations – just like today’s true church (Isa 66.18-21)
Millennial Israel will be raised for eternity (Isa 66.22, Rom 11.22-26) – just like today’s true church will be raised at the first resurrection (1 Cor 15)
It is surely time that the institutionalized church recognized the significance of national Israel and start to see her in her true light – as a future ‘church’ to the millennial world – the embodiment of a ‘millennial Christianity’.
Paul makes most of this this clear in Romans 11:
I ask then, did they (Israel) stumble so as to fall beyond recovery? Certainly not! However, because of their trespass, salvation has come to the Gentiles to make Israel jealous. 12But if their trespass means riches for the world, and their failure means riches for the Gentiles, how much greater riches will their fullness bring!
13I am speaking to you Gentiles. Inasmuch as I am the apostle to the Gentiles, I magnify my ministry in the hope that I may provoke my own people to jealousy and save some of them. 15For if their rejection is the reconciliation of the world, what will their acceptance be but life from the dead? 16If the first part of the dough is holy, so is the whole batch; if the root is holy, so are the branches.
17Now if some branches have been broken off, and you, a wild olive shoot, have been grafted in among the others to share in the nourishment of the olive root, do not boast over those branches. If you do, remember this: You do not support the root, but the root supports you.
19You will say then, “Branches were broken off so that I could be grafted in.” 20That is correct: They were broken off because of unbelief, but you stand by faith. Do not be arrogant, but be afraid. 21For if God did not spare the natural branches, He will certainly noth spare you either.
22Take notice, therefore, of the kindness and severity of God: severity to those who fell, but kindness to you, if you continue in His kindness. Otherwise you also will be cut off. 23And if they also do not persist in unbelief, they will be grafted in, for God is able to graft them in again. 24For if you were cut from a wild olive tree, and contrary to nature were grafted into one that is cultivated, how much more readily will these, the natural branches, be grafted into their own olive tree!
All Israel Will Be Saved
25I do not want you to be ignorant of this mystery, brothers, so that you will not be conceited: A hardening in part has come to Israel, until the full number of the Gentiles has come in. 26And so all Israel will be saved, as it is written:
“The Deliverer will come from Zion;
He will remove godlessness from Jacob.
27And this is My covenant with them
when I take away their sins.”i
28Regarding the gospel, they are enemies on your account; but regarding election, they are loved on account of the patriarchs. For God’s gifts and His call are irrevocable.
30For just as you who formerly disobeyed God have now received mercy through their disobedience, 31so they too have now disobeyed, in order that they too may receive mercy through the mercy shown to you. 32For God has consigned everyone to disobedience so that He may have mercy on everyone. (Jew and Gentile)
Sorry for the long post. But there are too many prophecies, promises and biblical framework to ignore in order to accept either amillenialism or replacement theology.