Which Israel is screwing up by building more and more settlements, making a two-state solution impossible. It isn't ethnic cleansing, but it is certainly a bad idea and probably a crime.
Or you could continue to spout nationalist propaganda. Your call.
What's the logic for starting with the Nakba versus something earlier or later?
Part of what I think makes this conflict intractable is everyone has a litany of historical grievances they can readily pull up to justify just about any claim.
Not everyone. Plenty of nations across history forgave, or at least tolerated and moved on. (America, Germany and Japan. Hell, America and Britain. India and Britain. Pretty much every member of the EU.)
The ones that don't, the ones that hold onto multigenerational gripes, tend to be consumed by them. (I'm not arguing that the Israelis or Palestinians or Armenians should give up because it's more peaceful. These are complicated fractures. But I'll stand by this feature, alone, making their conflicts intractable. Particularly by outsiders. The best you can do is permanent stalemate.)
[1] https://en.wikipedia.org/wiki/List_of_largest_trading_partne...