Fullness of the gentiles has not come in. If it had, blindness in part would be lifted from Israel.
It has. Do you recall that the Apostles Paul and Peter proclaimed that, since the physical nation of Israel had rejected Jesus, the
Christian congregation was now God's chosen people? So it would be
SPIRITUAL Israel that is currently relevant to God and Jesus.
"There is neither Jew nor Greek, there is neither slave nor free man, there is neither male nor female; for you are all one
in Christ Jesus. If you
belong to Christ, then you are Abraham's descendants, heir according to promise." (Galatians 3:28,29, NASB)
"You are a chosen race, a royal priesthood, a
holy nation, a people for God's own possession, so that you may proclaim the excellencies of Him who has called you out of darkness in His marvelous light; for you once were not a people, but now you are the people of God." (I Peter 2:9,10, NASB)
Peter was writing to Gentiles who had accepted Christ, and Paul to the church of Galatia. Clearly whoever accepted Christ was part of the "people for God's possession" no matter what nationality they were.
So, with that in mind, we can reason that the
spiritual Jews of today have indeed had blindness lifted. Especially since 1914, when "the times of the Gentiles" were fulfilled.