Please bear in mind that I believe the war & its aftermath demonstrated the need for a Jewish state in Palestine, decisively. But the above doesn't really address the issue of settler-colonialism because the immigrants arrived legally under the laws of the Mandate, which was simply, as far as the indigenous inhabitants were concerned, another colonial entity.

Israel was not a typical settler-colonial enterprise—there is no metropole for inhabitants to return to, & there was a significant, if small, indigenous Jewish population—but it did inculcate many of the settler-colonial strategies: displacing indigenous peoples, keeping others under martial law after independence. Some of these, especially the West Bank & East Jerusalem settler movement, haunt it to this day. How these issues will ever be resolved, in fact, remains a mystery to me.