Except both don't need to. Israel literally has the concept of "New Historians" because Israeli historians felt the need to correct the clearly fabricated history of Israel's founding where they finally admitted that ethnic cleansing took place, but then a majority of them decided to justify it as a necessary evil so that a Jewish state can exist. Israel has a track record of constantly shifting their story and making unsubstantiated claim after claim which are contradicted time and time again by either evidence found by third parties or themselves.

The Palestinian cause on the other hand has been consistent in their claims, and have been backed up from multiple parties including Palestinian witnesses, Israeli witnesses, Independent journalists, Israeli journalists, Israeli veterans, Israeli historians. Anyone who has been following this conflict in earnest would know that there are no two sides; there is only the oppressor and the oppressed, the colonizer and the colonized.

Dr. Gabor Maté, Ilan Pappe, and Norman Finkelstein are just three prominent Jewish academics critical of Israel and Zionism; two of which are ex-Zionists who became anti-Zionist when they realized what Zionism entailed. Look them up and see what they have to say.

Then you have ex-IDF soldiers like Eran Efrati who have become disillusioned with Israel and Zionism after realizing how the soldiers are being used to create and enforce systematic oppression. You also have testimonies of war crimes from IDF veterans such as Yosef Diamant which detail the torture and rape of civilians since 1948, none of which has gone punished. In fact, Israel pardoned themselves of all war crimes a year later.

There's also Breaking the Silence, an Israeli NGO built so that IDF veterans have a place to go past the censor and talk about their experiences. Searching up "human shields" and "ambulances" yields damning results.

Let's not forget the Israeli journalists that have been documenting crime after crime such as Yuval Abraham who routinely publishes his work in 972+ Magazine, and independent magazine established by four Israeli writers.

I could go on and on. I have a feeling that you're not even going to bother looking anything up, since you parroted the 1400 dead that even the Israeli government has since changed two months ago, so here is just one source. You can find the rest on your own until you admit that your head is buried deep in the sand.

Breaking the Silence

Israeli NGO where IDF veterans testify their experiences. Some examples:

You know what? I'm feeling a little bit generous, here's two more:

Israeli Soldier's Explosive Tell-All: "Palestinians are right to resist"

Tantoura Ethnic Cleansing Testimony - Yosef Diamant

^Whole-ass documentary if you want.