Well, Christianity has always taught that Christianity is the New Israel...
What, then, is supersessionism? The word designates the traditional Christian belief that the covenant between God and the People of Israel, established through the mediation of Moses at Mount Sinai, has been replaced or superseded by the ‘New Covenant’ of Jesus Christ. This implies that the Mosaic covenant, with its ritual and dietary requirements, Sabbath observance, etc., is no longer valid for the Jewish people, since God’s revealed will is for Jews, as well as all Gentiles, to enter into the New Covenant by means of baptism and faith in Jesus as the promised Messiah.
When these prophecies come to pass, the Fundamentalist/Evangelical/Rapturist understanding of the secular state called Israel will be seen for what it was at that point also.
Ew . . . nasty.
So in addition to chucking out the first eleven chapters of Genesis, those unfortunate people will also have to trade their Biblical sentimentalism for medieval sentimentalism?
It ain't worth it.