I have to agree with xzins. What God considers a Jew is not what mankind does, right?
Have you ever considered asking Jews what they consider to be Jewish? Logic 101.
I think God considers Jews (those kinsmen after the flesh) to be Jews.
There is discussion of "an Israel of God," but that is clearly a metaphor. The same with those who are Jews "inwardly."
They have legitimate spiritual meaning when they are used, but they do not negate the existence of those who are "Jews after the flesh." The presence of these racial Jews makes it necessary to consider some or all prophecies as relating to their group and not to the church.
It is possible that:
(1) All "Israel" prophecies relate only to the church.
(2) All "Israel" prophecies relate only to racial Israel.
(3) Some relate to the Church and some relate to racial Israel.
Time will tell, of course, but one would be negligence not to ponder the fact that racial Israel is again occupying their ancestral land.