> The people who founded Israel were almost 100% Ashkenazi Jews, mostly from Central and Eastern Europe.
Israelis like Geulah Cohen, Moshe Barzani, Eliyahu Hakim, Shimon Tzabar, Eliyahu Bet-Zuri, Mordechai Alkahi, Avshalom Haviv, Meir Nakar, Eliezer Kashani, and Shmuel Tankus were all prominent Mizrahi leaders and commanders in Lehi, Irgun, and the Haganah.
Kurdish, Iraqi, Levantine, and Turkish Jews had been a prominent demographic in what became Israel well before 1948 due to it's former Ottoman status along with communal incidents in Kurdistan, Iraq, Syria, and Turkiye well before 1948.
In addition, in the late 19th and early 20th century, most of the Ashkenazi who arrived in the Levant at the time aligned with "Ottomanization" [0] or assimilating into Ottoman Turkish culture and dropping any trappings of European culture, hence David Ben Gurion and Yitzhak Ben-Zvi becoming students at the Dârülfünûn-ı Şâhâne in Istanbul and assimilating into Turkish culture during their formative years.
The Labor Zionist movement tended to be primarily Ashkenazi, but they were not alone in founding Israel. Mizrahis were overrepresented in the Irgun and Lehi, both of who's political wings became the Likud.
[0] - https://gala.gre.ac.uk/id/eprint/16111/13/16111%20TALBOT_Jew...