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.

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.

Zionism’s aims in Palestine, its deeply-held conviction that the Land of Israel belonged exclusively to the Jewish people as a whole, and the idea of Palestine’s “civilizational barrenness" or “emptiness” against the background of European imperialist ideologies all converged in the logical conclusion that the native population should make way for thenewcomers.

The idea that the Palestinian Arabs must find a place for themselves elsewhere was articulated early on. Indeed, the founder of the movement, Theodor Herzl, provided an early reference to transfer even before he formally outlined his theory of Zionist rebirth in his Judenstat.

An 1895 entry in his diary provides in embryonic form many of the elements that were to be demonstrated repeatedly in the Zionist quest for solutions to the “Arab problem ”-the idea of dealing with state governments over the heads of the indigenous population, Jewish acquisition of property that would be inalienable, “Hebrew Land" and “Hebrew Labor,” and the removal of the native population.

Both Hamas and Fatah have agreed to a Two-State solution based on the 1967 borders for decades. Oslo and Camp David were used by Israel to continue settlements in the West Bank and maintain an Apartheid, while preventing any actual Two-State solution

How Avi Shlaim moved from two-state solution to one-state solution

‘One state is a game changer’: A conversation with Ilan Pappe

One State Solution, Foreign Affairs

• Palestine: A Four Thousand Year History - Nur Masalha

• The Concept of Transfer 1882-1948 - Nur Masalha

• A History of Modern Palestine - Ilan Pappe

• The Hundred Years' War on Palestine - Rashid Khalidi

• The Ethnic Cleansing of Palestine - Ilan Pappe

• The 1967 Arab-Israeli War: Origins and Consequences - Avi Shlaim

• The Biggest Prison on Earth: A History of the Occupied Territories - Ilan Pappe

• The Gaza Strip: The Political Economy of De-development - Sara Roy

• 10 Myths About Israel - Ilan Pappe (summery)