Total nonsense
Zionist derives from Zion - aka the name used by Jews, before having captured a Canaanite-Jebusite city (Zion) located around two hills, henceforth Jews referring to it as Jerusalem.
Therefore Zionism refers to the matter, of a "promised land for Gods chosen children" (solely Jews) - and solely claimed and self-written only by Jews in the OT. Aka a self-issued blank check - to justify conquering and occupying other peoples lands. It is a pure religious based claim with absolutely no facts around, to support/prove that self-written Jewish OT claim.
Zionism of the 19th century then bases and extends that "claim" towards Zion (Jerusalem) onto the borders of the "extinct" (around 550 B.C.) Jewish Kingdom of King David&Solomon - that encompassed more or less the entire British Palestine of 1920, plus parts of southern Syria and Lebanon.
And this is what the Zionist have been doing relentlessly since latest 1948 - trying to conquer and occupy other nations and/or peoples territory - aka Southern Lebanon, Golan Heights, the West-bank and Gaza. Basing a territorial claim and "right" onto the 2500 years ago, defeated and destroyed Kingdom of David&Solomon.
Therefore if the Brits would have decided to allocate a Jewish Homeland not in British Palestine, but as planed in e.g. Uganda - then there would be a Jewish State in Africa, that however does not adhere towards Zionism.
As I had stated before - you got absolutely no clue whatsoever, pertaining to Judaism/Zionism and Israel.