I support Palestine on this issue.
Both sides committed war atrocities, not only Palestine.
People argue that Palestine was never a state, therefore Israel did not take any land. But the Native Americans also never had a state, does that justify Europeans taking their land?
The British ruled over Palestine and the Arabs. Jewish immigration into Palestine was met with tolerance by the Arabs, although there were some tensions. The Jews still lived peacefully with the Arabs however. The Arabs then tried to break free from British rule. The Jewish people supported Great Britain causing the Arabs to lose. Then Great Britain gave over the Palestine issue to UN. UN agreed that Palestine should be split between Palestine and Israel.
This is flawed because Palestine includes Jewish communities as well as Islamic. In Jerusalem, 50% of the population was Jewish, while 50% of the population was Islamic. They were peaceful with each other. The Arabs were also tolerant with each other. But when the split occurred, the tensions between Arabs and Jews increased, causing less tolerance.
This is also what happened to India. The Hindus and the Muslims both occupied India, and were both fighting for independence, but the British split the communities. This didn't stop the revolution from happening, but it caused less tolerance, and eventually the splitting of the lands into Muslim and Hindu countries.
An Israel state was not needed. Palestine was already tolerant of the Jews. Jerusalem was shared with both religions. They lived as neighbors peacefully. Splitting the land caused less tolerance, more war, and the decrease of Palestinian occupied land.
The Arabs wanted freedom and the Jewish people went against them, supporting the British. The British split up the Jewish, Christian, and Islamic people into separate institutions so that they are less unified. Then they take the Arab's land while the Arabs were being tolerant, and cause more war and less tolerance, and give it to the Jews.
Both(if so, then what should be the borders?)21.05%
Neither(if so, then what should exist there?)  5.26%