It's complicated, typing about such issues would take forever. To add to the topic of Jewish immigration. You might consider that the vast majority of Jews never wanted to go to Palestine (later falsely renamed into Israel). It was only the Russian Jews who were ever really fanatic about it, and some ultra rich Sephardim pushed it.

The Jews of Iraq did not want to leave Iraq. What was the solution? Ask their stooge, king Faisal the second to confiscate everything they had and prosecute them so they would have no interest in staying. Of course some of the impoverished Jews who had no property or strongly identified as Arab stayed. Also other crypto Jewish Iraqis must have stayed to spy and infiltrate but those are a few.

Not sure, if you are interested but this is a story about a Jewish spy network in Iraq.

It's only natural that Jews of Iran would not want to leave. The ones who wanted to leave already found ways to do so. Those who stayed are happy to stay there. It does not necessarily mean they are all fifth columnists. Even so, you bet some of them are!

I haven't really looked into Mt.Hermon. I will look it up. Thx for info.