imho
The Bible indicate that at least a major segment or stage will be
WHEN
The Anti-Christ sets up his image in the 3rd Temple’s Holy Of Holies and demands to be worshiped as God.
Jews, ACCORDING TO SCRIPTURE will know THEN that they’ve been had and flee as they are slaughtered massively from the Temple outwards.
Scripture indicates they will LOOK UPON HIM WHOM THEY HAVE PIERCED. That timing is not clear but it could easily be at the same time as their fleeing the above.
Certainly God is in charge of such and
IS STILL USING THE JEWS AS OBJECT LESSONS FOR ALL OF THE WORLD AND ALL OF CREATION.
Paul speaks about the mystery of how the two folds became one as having already happened during his lifetime.
So there’s a disconnect between when Paul claims it happened and when you claim it will happen.