That video gives a very good understanding of what "nakba" really means ... it was a catastrophe for the Arabs that the Jewish people were able to defeat five armies against overwhelming odds ... those with spiritual insight will recognize God's hand in restoring Israel.
You believe that there is Biblical justification for a group of people (not even related to ancient Israel) to take over land that is not theirs. That's not the general consensus of the world, with the exception of Christian zionists.
Any promise of an eternal land inheritance in the O.T. belongs to Christ and His people, who make up the Israel of God. The people that claim to have that inheritance are stealing promises made for those in Christ. "Abraham and His seed" is the spiritual seed of Christ. When you see "Abraham's seed", that is referring to his future lineage inheriting literal land. That event came to pass:
Joshua 21:43-45 KJV
And the LORD gave unto Israel all the land which he sware to give unto their fathers; and they possessed it, and dwelt therein. [44] And the LORD gave them rest round about, according to all that he sware unto their fathers: and there stood not a man of all their enemies before them; the LORD delivered all their enemies into their hand. [45] There failed not ought of any good thing which the LORD had spoken unto the house of Israel; all came to pass.