Zionism is a settler colonialism project that was able to really start with the support of British Imperialism. Zionism as a political movement started with Theodore Herzl in the 1880s as a 'modern' way to 'solve' the 'Jewish Question' of Europe.

Adi Callai, an Israeli, does a great analysis of how Antisemitism has been weaponized by Zionism during its history.

Since at least the 1860's, Europe was increasingly antisemitic and hostile to Jewish people. Zionism was explicitly a Setter Colonialist movement and the native Palestinians were not considered People but Savages by the Europeans. While Zionist Colonization began before it, the Balfor Declaration is when Britain gave it's backing of the movement in order to 'solve' the 'Jewish Question' while also creating a Colony in the newly conquered Middle East after WWI in order to exhibit military force in the region and extract natural resources.

That's when Zionist immigration started to pick up, out of necessity for most as Europe became more hostile and antisemitic. That continued into and during WWII, European countries and even the US refused to expand immigration quotas for Jewish people seeking asylum. The idea that the creation of Israel is a reparation for Jewish people is an after-the-fact justification. While most Jewish immigrants had no choice and just wanted a place to live in peace, it was the Zionist Leadership that developed and implemented the forced transfer, ethnic cleansing, of the native population, Palestinians. Without any Occupation, Apartheid, and ethnic cleansing, there would not be any Palestinian resistance to it.

Herzl himself explicitly considered Zionism a Settler Colonialist project, Setter Colonialism is always violent. The difficulty in creating a democratic Jewish state in an area inhabited by people who are not Jewish, is that enough Palestinian people need to be 'Transferred' to have a demographic majority that is Jewish. Ben-Gurion explicitly rejected Secular Bi-national state solutions in favor of partition.

• Page 8, The Concept of Transfer 1882-1948

• 10 myths of Israel by Ilan Pappe, summerized and full book

• Transfer Committee and the JNF led to Forced Displacement of 100,000 Palestinians throughout the mandate.