The government of Israel is at least somewhat democratic. That makes removing it a bit more thorny than removing an organization like Hamas, because one either has to effectively just force an election there, which carries the risk that the same people (or people with the same ideology, if you forbid the specific people currently in power) might just win it and keep things the same, or replace the entire system with something that isn't democratic, which is generally viewed as a bad thing in itself. It's also move salvageable though for the same reason: there's little chance that someone wanting peace and resolution will somehow take over Hamas, it would be antithetical to what their organization even is, but the policies of a government like Isreal's at least have the potential to dramatically shift if people wanting those things take hold of it.