Jesus acknowledged that the Jews were the descendants of Abraham, but that they weren’t the “children of Abraham” or the “children of God” anymore, but the “children of the devil”. Since Abraham is not their father, but the devil is, the promises that God gave to Abraham of those blessing Abrahams children being blessed does not apply to the Jews. They rejected Christ and are the children of the devil and not Abraham.
In John 8:37 Jesus said “I know you are Abraham’s descendants”.
in vs. 38, “If you were Abraham’s children,” said Jesus, “then you would[c] do what Abraham did.”
In vs 42, “If God were your Father, you would love me, for I have come here from God.
In vs 44, “You belong to your father, the devil, and you want to carry out your father’s desires.“
He is talking about their disobedience. Most of Ishmael's kids are disobedient still too.
The branches are pruned and grafted, not completely chopped off.
Jesus told the jews that it doesn’t matter from what descent you’re from. If you reject Christ, then you’re not a “child of Abraham” or “child of God”.
There is no group getting special privileges or blessings because of their “lineage”. The Jews aren’t God’s chosen anymore.
The blessings and privileges have always been based on obedience.
Tribes of Israel were chosen to keep the truth of the Most High God throughout history, that is what they were 'chosen' for and tasked with.
Jesus said, “If God were your Father, you would love me, for I have come here from God”.
The privileges were only for the physical descendants of Abraham before. Now they are for anybody who “accepts” Jesus, it doesn’t matter what your lineage is and no lineage is more “favored” than another anymore.
That's the only part you have wrong.
Salvation was never based on race.
I think people outside Abraham had found favor with the Lord, even before the Jews and other tribes. I don't think God changes or breaks promises, even if people do. It can be difficult to see things outside of time while we are stuck in it.
I might be sounding semantical but it does matter.