That Israel is not a colonial state. All it's founders defined it as a European colonial project. It was and is allied with all the colonial powers and projects like Britain, the US, apartheid south Africa, and Rhodesia. Its funding association was called the Palestine Jewish colonization association. It's bank was called the Jewish colonial trust. The Jewish national fund and the Zionist project at large was from the beginning concerned with building segregated colonies.

First, lands were bought with foreign funding from feudal land lords, and their inhabitants were entirely dispossessed, kicked out. Then when awareness of the ultimate goals of the Zionist project crystalized and resistance against Palestinian dispossession mounted, the lands were ethnically cleansed by force and the people massacred. 700 to 800 thousand Palestinians were ethnically cleansed in one continuous military operation that spanned two years from 1947 to 1948.

Zionist leaders fully acknowledged that Palestinian demographics were a core issue to the Zionist project, that the Palestinian population had to be removed at any cost, which is exactly what Israel did. What lead to the Palestinians being defenseless in this situation? Colonial Britain abetted the formation of heavily armed Zionist militias with soldiers numbering in the tens of thousands. The arms of Britain's colonial military presence were inherited by the Zionist forces that it supported. All this while Britain summarily excecuted any Palestinian found in possession of a firearm.

This is not to mention the enthusiastic support of european antisemites for the Zionist project, or its strict early opposition by antifascist jews.

The idea that Israel has any right to exist on Palestinian land is a lie that has been so heavily proliferated, it has to be debunked when it should be paid no consideration at all.