Jim,
Why on earth should anybody wish to quote anything to you Keeith - what little you bother to read

Which of his books have you read Jim.
I read his Israel's Secret Wars when it came up previously here.
I found that the Palestinian site you quoted on it lied about what he said. You had never read it at all.

"One in three refugees world wide is Palestinian. the "about 6.5 million Palestinian refugees worldwide of whom more than 3.8 million Palestinian refugees and their descendants displaced in 1948 are registered for humanitarian assistance with the United Nations."

The reason for that is shameful. In 1948 there were Jewish and Arab refugees, but far more Jewish than Arab.
Israel settled all the Jewish ones on their tiny sliver of land, but the vast Arab nations refused to settle any of the Arabs, denying them citizenship rights and confining them to camps to the present day.
That is why there are so many, mostly just descendants of the actual refugees.