AskHistorians

Absolutely. The circumstances and context in which the Balfour Declaration was made and semi-implemented meant that a resentful Palestinian population, and a threatened-and-tightly-knit immigrant Jewish population were the nearly inevitable results. Maybe if the Brits had actually taken the latter half of the declaration seriously, it would have been different, possibly, maybe; but they hardly took any of it seriously. They just lit a fire and walked away. Contradictory policy on everything from immigration to security to government structure during the British Mandate decisively signaled that there was going to be no 'ready solution' once the mandate ended, and both sides knew that meant post-mandate negotiations were going to happen between Palestinians and Jewish immigrants based on brute strength, not mutually agreed civic principles.

Maybe even then it didn't need to become the genocidal shitshow it immediately became. But it was always going to end up in armed conflict with the way the Brits handled things.