Your item 11. You say 630,000 "Palestinians" fled in 1948 from Israel, and seemingly you are saying never returned. First of all, the term Palestinian was never then used for Arabs, who were just called Arabs. It meant the Jews living there if it meant anyone. Secondly, the 630M is the estimate of the total number of Arabs then living in 1948 in what became Israel, not the number who fled, much less the number who stayed away and never came back. The true number is more like 200 to 300 thousand, tops...
Somewhere in Jordan 1948
Abdul: Pst Muhamed.
Muhamed: Yeh, wassup.
A. Did you hear the UN is giving away free meal tickets and accomodation.
M. No kidding, where'd ya hear that.
A. Ali told me. Said all you have to do is register, tell em you're a refugee from other side of the river.
M. But I'm no refo.
A. I know that, but they don't.
M. Got no papers or nuttin.
A. Tell em those nasty Joos burnt your home and all your ID. They'll give you new papers anyhow.
M. Ya kiddin me - that's all I gotta do.
A. Yep, but don't forget to tell em you lived there for more than 2 years.
M. What you mean 2 years.
A. Stupid UN, they classify anyone who lived there for more than 2 years a refugee. Don't forget tell em about your extended family - chuck in a few extra kids, get extra ID's, so you get more rations.
Act 2. Same scene - 1998.
Abdul. Pst.. Muhamed
Muhamed. Yeh wassup
A. Aren't you glad I told you about this UN lurk 50 years ago.
M. Stupid UN, been feeding and sheltering me and my family all this time. Even my grandkids believe we are refos from the other side of the river.
A. Me. I picked up some extra ID's from dead relatives, the UN feeding them too. Been on easy street for 50 years, hope the UN never wakes up to the lurks.