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I don't think the paragraph should be deleted. I adjusted some parts of it to afrress your concerns. As for two points I didn't agree with:.
""It is written like an essay trying to prove direct correlation between the exodus and the rioting which is disputed"" - I don't think it's disputed that there is indeed a direct correlation. This is not to say there is 100% direct correlation, but indeed some of the massive waves of the exodus were reactions to the anti-Jewish riotings, violance and killings and this is partialy what the paragraph describes.
As for the use of the term ""fled"" - it's a good middlepoint between ""emmigrated"" end ""expelled"" that shows the element of fear was an important factor in the decision to leave, which is true and can't be ignored. The term is used twice: once for the 30,000 Jews who fled Llibya in the years 1949-1951 and second for Jews fleeing Egypt post-1948. In both cases I think the use of the term is appropriate.   "