Why are Hamas prioritising getting prisoners released from jail over stopping the war and saving their people? If they release the hostages and surrender power to the Palestinian Authority or to a government formed by Egypt and other partners who have been trying to form a day after plan the war will end. Israel have been very clear what their aims are.
But Hamas are more interested in holding power than saving the lives of their people or bringing about long term peace. Hamas have been very clear they see Palestinians as human shields and martyrs for their cause. They have openly delegated their responsibility to look after the wellbeing of civilians to the UN and Israel. This is all well documented online, including by NATO
Reservists have been called up. Maybe that's so they can do more targeted operations, rather than aerial bombing which has its limitations. If so it will end up in less civilian collateral damage, which can only be a good thing. So I'm not automatically seeing an increase in reservists as something onerous. We need to see how it pans out.
You say no one is stopping Israel. Well why would they? Most of the world is disgusted by what Hamas did and what they promised to do again. We've all seen what happens when Hamas goes unchecked.
Hamas have the bargaining chips in the hostages, they can release them, surrender and end the war. They've lost, they're achieving nothing. They're out of friends, their people are rising up against them. They're finished. They need to accept that.