That the narrative of Israel stealing land is false.
Israel encouraged arabs within their partition that were not resisting the new nation to stay. You can find many references to this, and it was Hertzl’s origin intention is his writing. This is why the 2M Israeli arabs - that have more freedom that in any arab nation - exist. Pity the arabs that left.
> is understandable that they would bear malice on those who caused them or their parents or grandparents to lose their homes
They don’t though. They have no malice towards their leaders that constantly started wars trying to destroy Israel and resulted in their losing their homes. They just hate Jews.
> But the existence of terrorists among a population does not give one carte blanche to attack that population.
Yes agreed. This is why the war is on Hamas rather than Gazans (even though Gazans overwhelmingly support the slaughter of their Israeli neighbours) at the cause of a great many Israeli lives.