Before the Second World War, however, support for Zionism in Jewish communities was limited.
Where is your evidence for that? The main reason why European Jews may have expressed concern about Zionism was because they worried that if it did not succeed, then they would forever be remembered as the people who are not loyal to their countries. That and only that was the reason.
Moreover, Zionism was a European Jewish movement.
Yeah, 95% of the Jews of the world were the Ashkenazi and Jew-hatred was mainly a European phenomenon.
Mizrahi and Sephardic Jews in Israel
These two words are Yiddish. You could have referred to them as: ‘Middle Eastern Jews’ and ‘Iberian Jews’ – and all people would understand who you are referring to.