I don't know the history of Israel too much.
If somebody asks me why aren't Jews considered colonizers. I don't know the answer to it.
I imagine that before any of the 20th century wars people were able to move in and out of the country freely. Eventually a lot of Jewish people started buying land and moving in. It came until a point that the Arabs/Muslims realized that what they own is getting smaller and smaller and put up resistance against allowing Jewish people to buy more land. Which then eventually progressed to fighting.
Is that anywhere accurate?