Is the Israel of God in Romans 11 blood-derived or spiritual?

Dispensationalism teaches that in the last days there will be 144,000 bloodline Israelites who will be martyred in the final revival and evangelism, while Gentiles will have nothing to do with it and will be raptured before the tribulation to become the 24 elders, and will have a position as kingly priests in heaven without even experiencing persecution.

Romans 11:11 I say then, have they stumbled that they should fall? Certainly not! But through their fall, to provoke them to jealousy, salvation has come to the Gentiles. 12 Now if their fall is riches for the world, and their failure riches for the Gentiles, how much more their fullness! 13 For I speak to you Gentiles; inasmuch as I am an apostle to the Gentiles, I magnify my ministry, 14 if by any means I may provoke to jealousy those who are my flesh and save some of them. 15 For if their being cast away is the reconciling of the world, what will their acceptance be but life from the dead? 16 For if the firstfruit is holy, the lump is also holy; and if the root is holy, so are the branches. 17 And if some of the branches were broken off, and you, being a wild olive tree, were grafted in among them, and with them became a partaker of the root and fatness of the olive tree, 18 do not boast against the branches. But if you do boast, remember that you do not support the root, but the root supports you. 19 You will say then, "Branches were broken off that I might be grafted in." 20 Well said. Because of unbelief they were broken off, and you stand by faith. Do not be haughty, but fear. 21 For if God did not spare the natural branches, He may not spare you either. 22 Therefore consider the goodness and severity of God: on those who fell, severity; but toward you, goodness, if you continue in His goodness. Otherwise you also will be cut off. 23 And they also, if they do not continue in unbelief, will be grafted in, for God is able to graft them in again. 24 For if you were cut out of the olive tree which is wild by nature, and were grafted contrary to nature into a cultivated olive tree, how much more will these, who are natural branches, be grafted into their own olive tree? 25 For I do not desire, brethren, that you should be ignorant of this mystery, lest you should be wise in your own opinion, that blindness in part has happened to Israel until the fullness of the Gentiles has come in. 26 And so all Israel will be saved, as it is written: "The Deliverer will come out of Zion, And He will turn away ungodliness from Jacob; 27 For this is My covenant with them, When I take away their sins."

literal interpretation

Replacement theology is called heretical, but I feel it is a realistic interpretation of the Bible. Old Testament Israel would benefit from reading and learning as it applies to the modern church. So, if we take an ethnic interpretation of the above scriptures, the Israelites who crucified Christ, the Pharisees, will be destroyed, and all Israel except evil one who thought circumcision was essential for salvation in the New Testament letters, will change their minds, accept Christ, and become Christians will be saved quiting the zealous followers of Judaism. 

The point is that the corrupting factor is removed so that Israel's purity is preserved. Since the Jewish Pharisees who crucify Christ or boast of their righteousness will not automatically be saved in the future, the whole of Israel is not all the members of the individual Israelite lineage, but rather the total Israel composed only of the humble and meek Jews who are to be saved. 

Although the number of Gentile Christians increased dramatically in the first century, there were still Jewish Christians in the congregation who could not dispel their Jewish viewpoints and thoughts. However, as the number of Gentile Christians increased, Jews began to accept Christ, the foundation of truth was established, and Christianity spread throughout the world at once.

So, if we interpret the prophecy as prophesying that the Jews of the bloodline Israelites who have been dispersed throughout the world will eventually accept Christ, then anyone can understand that it does not mean that the false Israelites in the Palestinian territories will be saved, even more so. They are not Israelites of the bloodline. If this verse implies the future salvation of bloodline Israelis, then it also prophesies the rescue of the Japanese who are said to have the Israeli bloodline, as well as unbelievers of yellow descent and Buddhists around the world.

In verse 22, Paul prophesies that “you will be cut off,” which is a reference to what he wrote in his letter to the Romans, implying that the Western Christianity of today will be cut off from God because of pride, just as Israel fell in ancient times because of the vulgarity of its attitude and state of faith in the Western culture derived from Rome. Christianity in Western culture, which originated in Rome, has in fact become the Great Babylon, arrogant and unrestrained, doing whatever it wants to do while claiming to be saved by grace of faith. Thus, Paul warns us that we will perish because we continue to sin and live in a prideful and elect mindset, even though we know Christ.

Figurative Meaning