So first it is geography and polity, and now it is morality that justifies breaking the command not to sell or divide the land from applying to Israel today, but which is based on a fundamental fallacy. For the commands apply regardless, and breaking them adds to that of others, such as abortion.
Since Israel also did not have a valid Levitical priesthood when the modern state was founded, nor does it have this now, then you can eliminate the regathering and founding of the state of Israel as being a work of God and fulfillment of prophecy.
However, God did not choose Israel because of their merit, nor does God love natural Israel and promise a future repentance to the remaining descendants because of their obedience, but because they are beloved for the Father's sake.
Our differences about the application of the Torah to present-day political, social and military policy are probably too extensive to discuss fruitfully. If there were a Davidic King there might (might) by some justification for territorial revanchism. But I don't think that will happen until Jesus comes again.