Sushe, the Zionists di not radicalize the Arabs. In fact, just after the Balfour Declaration the Emir Faisal met witrh Chaim Weizman and expressed support for Zionism from an Islamic perspective similar to what Fundamentalists are saying today although without statements about converting us chas veshalom. The radicalization was carried out by the Mufti of Yerushalayim ym”s, whjo was an admirer of yemach shemo in Germany and had delusions of reestablishing the Caliphate (under his rule, of course). Thus, in Tarpat the Arabs massacred non-Zionist Tora learners in Chevron. The mob included those with whom the Jews had long-standing good personal relations.
As for the pre-Zionist situation is concerned, for years Ashkenazim had to masquerade as Sephardim because any Ashkenazi founs was imprisoned for debts on the Churva synagogue. Not to mention the Damascus blood libel.