The IDF owes them nothing at all. Hamas is the government of Gaza, and it clearly has significant support among the population, particularly the wealthier segment who – if they disagreed – could just leave Gaza. Hell, Hamas got voted into power with a clear majority between them and even more extremist parties.
Worse, Oct 7th was _not_ solely Hamas. Roughly half of the murders and kidnappings were by "ordinary" Gazans who just decided to join in. And again, we see that support in how – unlike WW2 – there's no examples of Gazans helping hostages escape.
The onus was on Gazans as a whole to stop this violence rather than support it. They chose the latter.
Germany paid huge sums for WW2 reparations, including wide scale confiscation of private property. Hopefully Russia will as well. And for that matter, Iran.
Does Ukraine owe Russians anything for the large amount of Russian property destroyed and Russian "civilians" killed in the course of defending themselves? Of course not. Israel is no different.
