I would say the war started when Jewish settlers started purchasing farms and refused to hire anyone but Jews. It ripped any possibility of survival from the people who traditionally worked those farms. It forced their only hope to be fighting back.

For a time both Jews and Arabs lived together peacefully, and the first Kibbutz seemed to want to work together and free the workers from the oppression of the traditional landowners. Once they started only hiring Jews there was no going back. This was the end of peace, and it was started by the Jewish settlers. Oct 7th 2023 is only a small moment in a much larger conflict.