There are a few historical facts that cannot be dodged when it comes to this issue.
In biblical times there was a great deal of ethnic and even religious mixing in ancient Judea and Israel. The Old Testament prophets were often railing against this mixing, particularly in religious terms and intermarriage. Moreover, even during that time, there were Jewish communities established in Arab lands, in Persia, as well as in East and North Africa.
With the destruction of the Temple and the fall of the Roman colony of Judea in 70 AD, the indigenous farmers, craftsmen and small-time traders stayed put and continued their lives as before. Some of these inhabitants were early Christians and were the ancestors of many of today’s Palestinian Christians, others remained vaguely Jewish. Those who left with the Romans later dispersed to other parts of Europe and even central Asia.
Modern research shows that when Islam arrived in the area in 638 AD many of these Jews converted and that their descendants form a considerable part of today’s Palestinians.
Many European Jews, consisted of Khazars, inhabitants of a kingdom in the early middle ages, roughly between the Caspian and the Black Seas. One of their kings converted to Judaism around 740 AD and made Judaism the state religion.
In the 9th century Khazaria finally fell to the Viking hordes and its inhabitants dispersed throughout much of Europe.
Following WW1, there were 700,000 Arabs who presently inhabit Palestine. Whether they offcially referred to themselves as Palestinians is immaterial. They were the owners and the inhabitnants of the land.
To believe that God, would uproot a people (the Palestinians) from their land based on the fact that they were not Jewish (even though many may have been if one traced thier bloodlines), and based on a novel reading of Scripture that even ancient Jews would have laughed at, is absurd.
And it is certainly not Christian.