@Notsuretoputit
Thank you, so it appears perhaps thousands of Jewish people were expelled forcibly, but not the whole 900,000 that ended up migrating during the period.
Wiki has a good summary on
“The reasons for the exoduses are manifold, including: pull factors, such as the desire to fulfill Zionism, find a better economic status and a secure home in either Israel or Europe and the Americas, and the Israeli government's implementation of official policy in favour of the "One Million Plan" to focus on accommodating Jewish immigrants from Arab- and Muslim-majority countries;[17]and push factors, such as antisemitism, persecution, and pogroms, political instability,[18] poverty,[18] and expulsion. The history of the exodus has been politicized, given its proposed relevance to the historical narrative of the Arab–Israeli conflict.[19][20] When presenting the history, those who view the Jewish exodus as analogous to the 1948 Palestinian expulsion and flight generally emphasize the push factors and consider those who left to have been refugees, while those who oppose that view generally emphasize the pull factors and consider the Jews to have been willing immigrants, sometimes positing a "malicious Zionist conspiracy" to explain the exodus.[21]”
https://en.wikipedia.org/wiki/Jewish_exodus_from_the_Muslim_world