If, Paul, I graft a rose into my rosebush, if the cutting takes, the rose grafted in becomes part of the bush and can be accepted as such. I would have thought that when Paul likened us to grafted in branches, it would be the same, when the cutting takes, then the branch becomes part of the vine, which means we become what the vine is, and if the vine is Jewish, then that is what we become. This is not a bad thing, the Jews are those set aside for God, God's people, those who brought the knowledge of God to the world and the reason the world hates them. And as we are grafted into the people of God, we, being grafted in, are also hated. Praise the Lord we are who we are, on the right side!!We, gentiles, are grafted into the vine, it does not make us Jews.