White European Jews were the ones whose idea it was, to colonize the Middle East and drive out "Arabs" as they called the population. Not any other Jews, but white. Those who could not get enough privilege at home, so they decided to conquer a territory for themselves, where they can be supremacist enough. They viewed Middle Eastern and African Jews as subhuman.
Of course, Zionism is Jewish supremacism, but it is White Jewish supremacism, first and foremost. The fact that Zionists have recruited their demographically needed non-white Jewish contingent as cheap labor and cannon fodder, does not negate the white supremacism essence of Zionism, just as Black and POC American politicians do not negate American anti-black racist essence and its white supremacy.