The first settlers didn't pruchase land from arabs but purchased from British who occupied that land and took it from arabs.
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You are 100% wrong on that one. Here's quotes from 3 different historians, 1 Palestinian, 1 pro-Israel Israeli, and 1 Israeli quoted and criticized by both extremes that show you have no clue what you are talking about.
And yes, these three books are books I have and have read.
Under the Ottomans
buying land occasionally required "stratagems" since the Ottoman authorities were generally ill disposed toward Jewish land acquisition. But the purchase of Palestine proceeded at a snail's pace. And it was not mainly a problem of an effendi reluctance to sell. Most of the world's Jews were non-Zionists, and most, simply, were poor, especially in the Zionist movement's Eastern European heartland. And the rich, concentrated in Central and Western Europe, by and large refused to help. So, gathering a ruble here and a ruble there, the initially uncoordinated Zionist associations-Hovevei Zion, or Lovers of Zion-bought the odd tract of land for settlement and then sent out small groups of individuals or families to fulfill the dream.
Prof. Benny Morris. 1948: A History of the First Arab-Israeli War (Kindle Locations 85-89). Kindle Edition.
However, Istanbul, while periodically issuing restrictive orders, never effectively clamped down on Jewish immigration, land purchases, and settlement.
Prof. Benny Morris. 1948: A History of the First Arab-Israeli War (Kindle Location 142). Kindle Edition.
The authorities upheld the purchase, Fula was evacuated, and within months, a Jewish settlement, Merhavia, took root on the site.
Prof. Benny Morris. 1948: A History of the First Arab-Israeli War (Kindle Location 165). Kindle Edition.
Under the Brits
Throughout the Mandate, the leading Arab families, including Husseinis and Opposition figures, sold land to the Zionists, despite their nationalist professions. Jewish landholding increased between 1920 and 1947 from about 456,000 dunams to about 1.4 million dunams. The main brake on Jewish land purchases, at least during the 19206 and 1930s, was lack of funds, not any Arab indisposition to sell.'9 Moreover, hundreds of Arabs collaborated with the Zionist intelligence agencies.20
Prof. Benny Morris. 1948: A History of the First Arab-Israeli War (Kindle Locations 249-251). Kindle Edition.
Particularly striking was the abrupt transformation of Hussein Khalidi, scion of a distinguished family.... “The Jews have come to the country, have taken its citizenship and have become Palestinians, and it is impossible to throw them into the
Karsh, Efraim (2010-08-20). Palestine Betrayed (Kindle Locations 698-702). Yale University Press. Kindle Edition.
[Note, This Khalidi is a relative of the Palestinian historian Rashid Khalidi - next quote]
As with the touchy issue of land sales by Arab landlords to Zionist land- purchase agencies or to individual Jewish buyers, all concerned carefully wreathed these activities in secrecy, with multiple intermediaries sometimes involved.
Khalidi, Rashid (2006-09-01). The Iron Cage: The Story of the Palestinian Struggle for Statehood (Kindle Locations 1875-1877). Beacon Press. Kindle Edition. ]
To take a parallel issue of similar sensitivity, Zionist sources reported land purchases in terms of the original seller and the final ownership of a piece of property. It is not clear from these sources whether these sales took place in an active market for land, such that a given piece of land may have passed through several hands before ending up in Zionist ownership.25 Similarly, it is not always clear whether the middlemen who were frequently involved were so well disguised that sellers might have had no idea to whom their property was ultimately being ceded. On the other hand, in many cases the only possible purchasers were Zionist organizations, or sellers
Khalidi, Rashid (2006-09-01). The Iron Cage: The Story of the Palestinian Struggle for Statehood (Kindle Locations 1888-1893). Beacon Press. Kindle Edition.