Argument: The Peel report and many other confirmed statistics, such as the fact that "Palestinian" Arabs owned less than 7% of land while absentee landowners owned land which was sold to Jews.
Rebuttal: False. A survey conducted for the British government revealed that Jews owned less than 7% of land, while Arabs 50%.
Argument: Chapter 9 of the Peel Commission Report backs up the factual history of Arab immigration from Lebanon, Syria, Egypt, etc.:
Rebuttal: The passage you quoted made no mention of Arab immigration. it said immigration had increased, but does not state that this was he main contributor to the increased Arab population, which was due to natural growth.
Argument: Furthermore, the Peel Commission admitted that Arabs on the whole, benefited from a growing Jewish presence in the land as they brought economic prosperity and stability to Palestine and its inhabitants.
Rebuttal: That's true to some extent. In March 1911, 150 Palestinian notables cabled the Turkish parliament protesting land sales to Zionist Jews. The governor of Jerusalem, Azmi Bey, responded:
"We are not xenophobes; we welcome all strangers. We are not anti-Semites; we value the economic superiority of the Jews. But no nation, no government could open its arms to groups. . . . aiming to take Palestine from us." (Righteous Victims, p. 62)
Argument: Arab claims that they were displaced from their homes after living there generation after generation for thousands of years were baseless and fabricated.
Rebuttal: The Peel Commission was concluded in 1936. The displacement, expulsion and l;and theft took place between 1947 and 1948.
Most Arabs living in Palestine prior to 1948 were born there. Very few came from Arab lands.
History doesn't lie, even though you do.