Hamas wants a permanent ceasefire, Netanyahu and the Israeli government do not. Their goal is the elimination of Hamas. According to a Pew poll conducted March and April, released last week, 76% of Jewish Israeli society believes that Israel will achieve its war aims.
Vox reports on what happens if Gaza ceasefire talks fail:
Israel is continuing its assault on Rafah as well as its ground and air operations in other parts of Gaza.. Unless the war ends soon and humanitarian aid can enter Gaza, many more Palestinians — not just the 3,500 projected in the analysis — will die this summer.