Many of God's Old Testament promises to Israel remain unfulfilled. God has not abandoned the people of Israel.
God unconditionally gave the land of Israel to Abraham and his decendents (through his son Isaac) forever. That covenant is re-stated in the Prophets. The Israelites were displaced temporarily for disobediance, but they have clear title to the land in perpetuity. Replacement theology is not biblical, though I don't go so far as some of the TBN crowd and call it a doctrine of the devil.