Good to take a step back now and then and allow some time to digest what's going on, away from the live feed updates.
I updated the OP to reflect the current situation and included the Holocaust and rise of anti-semitism in the 19th century in the time line, which led to the creation of Zionism and later Neo-Zionism. There is also Post-Zionism and Labor Zionism which started the Kibbutz phenomenon.
From the ADL definition of Zionism
Zionism does not preclude support for Palestinian self-determination and statehood. For some Zionists, support for a two-state solution is the realization of self-determination for Jews and Palestinians alike.
Settler colonialism in the name of Zionism is the problem, not Zionism itself.