The Israel-Palestine conflict is not like US native American conflict where we landed somewhere we'd never lived before, killed as many people as possible, and broke treaty after treaty.
The Jews has been living there for 2000+ years. The Ottoman empire was the last empire in control of that area. It lost a war and gave up that land to the British. The British proposed a break up. That was rejected. The UN proposed a break up of the area into Jewish and Arab land. The Arabs did not agree with he division of land and went to war with Israel, Israel won. This happened a few times until we ended up with today's boarders.
Now neither the Israelis nor Palestinians believe in a two state solution. And you have two groups of people bent on the others destruction.