https://en.wikipedia.org/wiki/Bertrand_Russell
"No people anywhere in the world would accept being expelled en masse from their own country; how can anyone require the people of Palestine to accept a punishment which nobody else would tolerate?" -- Russell
It's telling that a bunch of my comments were flagged. (The guy who pointedly suggested that I must be a Jew to have this view however wasn't.)
I think the difference matters. "I'm not living with those people in charge" and then fighting for the better part of a century to throw them out, gets less sympathy from me than "they threw me out".
On the other hand, I have some sympathy for Cuban exiles, so maybe I'm inconsistent...
Both, the fleeing was a direct result and the very intention of the massacres to achieve the ethnic-cleansing[1] of Palestinians. Those who fled were not only refused back onto their land and homes, but were also shot at and killed when they tried going back into their homes.
[1] The Masterplan for the Ethnic Cleansing of Palestine, https://www.youtube.com/watch?v=C3cnRcfp_us