Dr. Ismail Zayid tells Kim Peterson "who the Palestinians are"

More Gingrich fallout: According to Peterson, "Dr. Ismail Zayid, who was born in Palestine, responded to me a few years ago on the topic of who the Palestinians are":

The Palestinian people of today are the direct descendents of the Canaanites, the Philistines, the Jebusites and other Arab tribes that lived in this land, of historic Palestine, since history began . . .

The Israelis are not the original inhabitants of Palestine. They came as invaders. The land of Palestine, because of its geographic location, was exposed, throughout history, to a variety of invaders including the Hebrew tribes, the Babylonians, the Persians, the Greeks, the Romans, the Crusaders, the Turks and the British and finally the Israelis of today. The Hebrew tribes [The Israelites], as invaders have no more legitimate claim to this land than the Greeks, Romans, Turks etc. If conquering invaders, in occupation for a period of time, have any legitimate claim to a territory or country, then the Romans should claim England as their land, and the Arabs should claim Spain as their land, and so on. [...]

Is that a claim that "the Canaanites, the Philistines, the Jebusites" were all Arab? And who does he think got invaded by the Babylonians, Persians, Greeks, and Romans?