Countries who bless Israel will be blessed. The Jews have blessed the world more than any other people by a large margin.
The Nobel Prize breakdown (for other than peace or literature) between Jews and Arabs is amazing. Israel is .02% of the population and won 22% of the prizes.
The descendants of Jacob are blessed. Certainly you are not saying the Israel nation created by the Brits after WW II are the descendants of Jacob, are you?
"Brothers, let me put this in human terms. Even a human covenant, once it is ratified, cannot be canceled or amended. The promises were spoken to Abraham and to his seed. The Scripture does not say, “and to seeds,” meaning many, but “and to your seed,” meaning One, who is Christ." - Galatians 3:15,16
"You are all sons of God through faith in Christ Jesus. For all of you who were baptized into Christ have clothed yourselves with Christ. There is neither Jew nor Greek, slave nor free, male nor female, for you are all one in Christ Jesus. 29And if you belong to Christ, then you are Abraham’s seed and heirs according to the promise." - Galatians 3:26,29
Paul makes reference to 'The Israel of God" in Galatians 6:16. So, I raise the question: Who is or who are "The Israel of God" that Paul speaks of ?