[jedimind]

When he writes "In the Palestine Mandate, Jews and Palestinians got along just fine" he clearly means that the centuries of peaceful co-existence before the arrival of Zionists are evidence that Zionism was and still is the root cause of hostilities and violence. That event which you referenced didn't happen in a vacuum since at that point Zionist colonization[1] was already in full force for decades and was systematically discriminating against the native Palestinians and trying to dispossess them deploying various strategies outlined in Jabotinsky's writings.

"The Irgun has been viewed as a terrorist organization or organization which carried out terrorist acts.

The Irgun policy was based on what was then called Revisionist Zionism founded by Ze'ev Jabotinsky.[6] Two of the operations for which the Irgun is best known are the bombing of the King David Hotel in Jerusalem on 22 July 1946 and the Deir Yassin massacre that killed at least 107 Palestinian Arab villagers, including women and children, carried out together with Lehi on 9 April 1948.

The organization committed acts of terrorism against Palestinian Arabs, as well as against the British authorities, who were regarded as illegal occupiers.[7] In particular the Irgun was described as a terrorist organization by the United Nations, British, and United States governments; in media such as The New York Times newspaper;[8][9] as well as by the Anglo-American Committee of Inquiry,[10][11] the 1946 Zionist Congress[12] and the Jewish Agency.[13] Albert Einstein, in a letter to The New York Times in 1948, compared Irgun and its successor Herut party to "Nazi and Fascist parties" and described it as a "terrorist, right wing, chauvinist organization".

https://en.wikipedia.org/wiki/Irgun

[1] The History of "Socialist" Zionism | Leftist Zionists did the Nakba & founded Israel https://www.youtube.com/watch?v=ehp9PZo4UR0

[aguaviva]

They can have it mean whatever they want it to mean.

But the statement by itself is nonsense, historically speaking.

[jedimind]

If you isolate the statement and offer 0 charity then it is, but from the context and the following sentence it's clear that he a) either doesnt know exactly when the Mandate began or b) did simply mean Palestine but confused time periods which becomes apparent by the following sentence: "That all changed once the ideology that the land belonged to Jews began to make rounds following the conclusion of WW2...". So I think my interpretation is fair and charitable based on a holistic reading.