One thing is certain. If the Palestinian-Arabs had one one-hundredth the inclination toward moral self-reflection as do the Jewish people the conflict would have been long over.
Arabs throw molotov cocktails at Jews practically on a daily basis in Israel. Sometimes they throw them at houses, sometimes that throw them at cars, and sometimes they throw them at cops. And sometimes they kill people. When that happens do the Palestinian-Arabs, as a people, publicly choose to reflect upon their misgivings and misunderstandings of others?
I do not think so.
Handing out sweets to children, and dancing in the streets, in order to celebrate the murder of Jews is not the behavior of someone engaged in moral self-reflection.
The Jewish people, however, including most particularly, Israeli Jews, have nothing to apologize for.
If anything, as a people perpetually under siege by a much larger hostile majority, they are the ones who deserve the apologies.