Israel do not want peace and keep expanding illegal settlements to make it impossible to have a two state solution. Israel never stop killing Palestinians even before Hamas was ever created. As long as there is occupation you can't expect the oppressed to not take vengeance
The various surrounding states have been trying to destroy Israel since its inception as well. Just like Iran is funding and arming Hamas and Hezbollah today. I don't need to tell you that all three are incredibly oppressive regimes.
Why would native people accept people who came from Europe to build an state in an already populated place? Zionists early leaders admitted that they want to whole land. Like Israel first prime Minister ever said this : "
after the formation of a large army in the wake of the establishment of the state, we will abolish partition and expand to the whole of Palestine" and Israel first president said : "partition might be only a temporary arrangement for the next twenty to twenty-five years"
Arabs did not intend to take revenge after the 48 loss yet Israel decided to colonize the West bank and Gaza. Israelis 6th prime minister admitted this : "The Egyptian Army concentrations in the Sinai approaches do not prove that Nasser was really about to attack us. We must be honest with ourselves. We decided to attack him"
I find it difficult to believe that the Arab League, which started the war to "sweep the Jews into the sea," would take the loss laying down. Especially since the Six-Day War happened.