I can think that the creation of a state for Jews can be supported. The manner wasn’t justified. But the idea in of it is very easy to justify with a group that historically has been among if not the most persecuted ethnic group in history. A group that has been expelled from nearly ever nation in the world at least once, it feels, like jews might have probably the best argument out of just about anyone for a place to call their own where they can defend themselves. Jews even in the US are still by far the biggest victims of hate crime.
I do think Palestinians did have a right to fight Israel, but obviously not terrorism and this is where you and i will disagree with no possibility of reconciliation. But Israel managed to hang on and largely on their own resources pre-1960s. Hell the largest land increase Israel has ever had was the result of a war and the land was given to them for peace.
But in the modern era, even though the original foundation was not justified, the only reasonable path towards peace is for the 2 state solution with the support if Saudi Arabia and other Islamic nations to help enforce and encourage peace. Israel will never give up the Israeli state and the collapse of Israel will result in the genocide of the Israelis there as is the explicit and stated goals of most groups opposed to Israel in the area and has been demonstrated. But a scared Israel fighting for their life would be a disaster for Palestinians.