Israel can dictate the terms, though. They can just say what they want, and keep killing whether or not Hamas agrees.

I won’t say Hamas is a good partner for peace because they are not. (And, in fact, their violence and corruption is part of why Likud supports them above other much better Palestinian leadership.) But Israel is the issue. No one who is bombing, starving, and displacing millions of people who just want to live and be able to stop suffering can simultaneously complain that their victims aren’t being reasonable enough in the peace process.