this is all very well-put, but when it comes down to it, Israel is deliberately prolonging this war, has been provoking it for years, and is not acting in the self-defense you're implying. Netanyahu is out of a job and maybe facing prison the second this war ends, nakedly promoted Hamas over a more reasonable power the best he can, and has aggressively pushed illegal settlements. and more than anything, is living on land that was Palestinian within living memory. none of this was true in WW2. you can blame Hamas all you like, but all you're doing is rewarding Israel's strategy to demonise and make Palestinian statehood unpalatable

also, and primarily, if you have any awareness of Japanese history whatsoever, you should be able to know that the nuking of Japan was the special case of all special cases. personally I think they should have just nuked somewhere in rural Japan first to make their point, and then gone for a population centre if that had failed to work, but that's beside the point, which is that Japan did not believe it could be beaten. any time they had been threatened historically, they had triumphed dramatically, often with the weather or random luck seemingly on their side. this sounds silly, but it's true. they needed to be shocked out of their arrogance. the same is not true of Hamas.

also your "war should be fought with maximum force" and--by implication--brutality is just complete bullshit and you've not actually made any effort to justify it other tham just saying that it's true