And what evidence does Israel have that being kinder and gentler towards a terrorist organization would be effective? When it is surrounded by countries who literally want it to be obliterated. Not because of anything that has happened in the last 80 years but because they are Jewish.
Why was Israel created?
Sure any of those could have been done. Of course, Israel was founded on lands that had traditionally, historically belonged to Jews.
The land historically belonged to the indigenous peoples of the region, the descendants of the ancient Canaanites, regardless of their religious affiliation.
Jews were only about 10% of the population in Palestine at the beginning of the 20th century. Even with hundreds of thousands of mostly illegal immigrants they were only about 30% of the population when the State of Israel was declared to exist on more than 50% of the land.
The British did not ‘give’ land that was not theirs. The Ottoman Empire abandoned claim to those lands. A jewish homeland was intended to be part of Palestine from the beginning of the mandate, as laid out by the League of Nations following WWI.
The Ottoman Empire did not abandon any claims; it lost a war and lost power in the region. And the League of Nations had no authority to create a new State in Palestine. The people in the various provinces of the former empire wanted to create their own States to govern their own affairs. No one wanted some outside power to force them to accept a government at gunpoint, and they certainly didn't want to be forced out of their homes by armed, militant immigrants.
If someone had a time machine and an army they could prevent much of the conflict by forcing the Zionist immigrants to become part of Palestinian society and work their way up to prosperity, not steal every bit of productive farmland and every commercial enterprise they could get their hands on and force the local population into refugee camps. But we live in the real world where actions have consequences. The consequence of the hostile takeover of most of Palestine by mostly European immigrants, and the explicit racism and religious bigotry that is the foundation of the State of Israel, was war. The consequence of thwarting the establishment of a Palestinian State in a negotiated peace treaty, or securing equal rights and equal treatment for the people of Israel and Palestine regardless of race, ethnicity, and religion, is the ongoing violence and injustice of apartheid, oppression, insurgency, and terrorism.
If we want to ‘give back’ land the British gave to people, you and I would probably end up as next door neighbors in Great Britain.
Or we could use the Alaska Native Land Claims Settlement Act as a template and negotiate a peaceful agreement on land sharing and ownership for all of the United States and its Territories. We could at least try to be fair and work for justice, not against it.