What you're talking about is called "Displacement Theology", and no offense, but it's just not scriptural. God's promises to Abraham were UNCONDITIONAL and everlasting. God promised to give Israel to the Jews forever. There are many many Bible scriptures to support this.
Displacement Theology is extremely dangerous, and led to the slaughter of millions and millions of Jews, from the Inquisition to the Holocaust.
One man's displacement is another man's denial (no not the river in Egypt). It is interesting that, when challenged with logic and fact you seek shelter in cries of anti-semitism and memories of the thrid largest holocaust of the 20th century.
God's gift to Abraham (an Iraqi by birth) was not unconditional. Other Covenants were rescinded by God because the "Chosen" failed to keep up their end of the deal (The Expulsion from Eden, The Great Flood, etc.) The promise to Abraham met the same fate when God sent his Son to establish a New and Everlasting Covenant. Furthermore, the exclusion of Gentiles, as you so openly advocate, was an affront to God and lead to the coming of Christ and the destruction of the Temple. Today's Israel is morally and spiritually bankrupt.