God told Abraham, "I will bless them that bless thee and curse them that curse thee."
America has long (if not always) recognized this spiritual reality.
You nailed, grafted in.
As an Evangelical, my God is the God of both the Old and New Testaments. There is a movement afoot that is called "Replacement Theology" that says in effect, that the Jews lost their Blessing at the Cross....which I believe to be a big lie. I will always support Israel even though the rest of the world will abandon them.
"Zechariah 12:3 And in that day will I make Jerusalem a burdensome stone for all people: all that burden themselves with it shall be cut in pieces, though all the people of the earth be gathered together against it."
Psalm 125:1-2 They that trust in the LORD shall be as mount Zion, which cannot be removed, but abideth for ever!
As the mountains are round about Jerusalem, so the LORD is round about his people from henceforth even for ever!
I believe that should America ever cease support of Isreal that there will be consequences...
As a Catholic I believe this.