unrwa schools teach since 50s about liberation of entire palestine from jews by force[0], jihad and glorification of martyrs[9]. change of curriculum was one of main israeli demands since oslo days because it was obvious that when you teach hate in schools it's not going to end up well for anyone. not sure that "even more hate" is something that people in Israel care about now.
Israel was biggest employer of palestinians from gaza and west bank. In fact, week before oct 7 number of work permits for gazans went up by 10k or 15k. This was because there were thought that economically stable gaza will be less likely violent and that hamas is somewhat interested in state building and prosperity. In aftermath of oct 7th turned out that workers from gaza (with permits) were scouting areas where they worked in order to make a detailed maps for attack and a bunch of attackers actually carried work permits.
when israel left gaza in 2005, inside israel was popular expression that "now that palestinians have complete self rule there, it's up to them what to build there, singapore or somali".
there is an israeli investor [1] who created design center in gaza, donated there money to hospital and employed palestinians from gaza and west bank. he daugher was murdered at nova. a bunch of people who lived in kibutzim around gaza were hardcore left and used to drive palestinians from gaza to treatments in israeli hospitals. they were murdered as well.
[0] https://cdn.theatlantic.com/media/archives/1961/10/208-4/132...
[9] https://www.impact-se.org/wp-content/uploads/Gazas-Education...
[1] https://www.bbc.com/news/world-middle-east-67679634