Firstly, Palestinian representatives including Hamas have tried to come to the negotiating table, ever since the beginning. The response from Israel is bombing runs, artillery fire, and bad faith claims that Hamas will not negotiate.
Secondly, Palestinians do not want to exterminate anyone, they simply want to be free. The extermination/genocide thing is common myth presented by settlers who can’t imagine anything but genocide, as it’s how their own society has been built, and they project this on to all other societies.