> What other types of resistance hasn't already been tried and failed there?
Literally everything other than terrorism!
You can fight a resistance without killing kids at a concert. Remember the videos of Ukraine treating its POWs well? Imagine if Hamas had restricted its targets to military assets, released all non-active duty hostages, and then released videos of them being served tea and hummus while Israeli planes pounded above. How different would the narrative be?
To be honest, I don't think things would be much different. If Hamas took only military personnel hostage, the IDF would still be bombing Gaza and demanding they be returned.
When Gilad Shalit was taken hostage Operation Summer Rains followed. That was one soldier. You really think if Hamas took hundreds of soldiers hostage, they wouldn't go bomb Gaza?
Well they could accept that Israel is always going to exist and that the Palestinians should instead have an actual government that is focused on helping the palestinian people as opposed to launching failed attacks that will only cause 10s of thousands of palestinians to die.
If you want a good template, look at Egypt and Jordan. Countries that were previously at war with Israel and made peace and eventually became thriving allies of Israel.
The Egypt/Jordan model, where you accept whatever the current borders are, has worked out quite well for them in comparison to the groups that won't accept this.
Once that happens, well you can look at some of the stuff that was in the Trump plan, where the surrounding Arab states would help setup a coalition government and would invest significant amounts of money into rebuilding Gaza.
What might those be? What other types of resistance hasn't already been tried and failed there?