Remember, this started last Oct 7th with the invasion of Isreal and the killing of more than those killed in our 9/11 based on relative population. Some 3000? killed and many injured, plus the captives by the Hamas invasion.
Netanyahu has declared his intent to wipe out Hamas so they can never invade and kill Israeli folks again. Sort of like us going after our 9/11 terrorists, which was far more limited.
Biden and his Secty or State have been working for most of the last year in working with the 3 Arab states to help negotiate a final peace deal that releases the hostages in exchange for thousands of Hamas criminals in prison, a permanent ceasefire and agreement on working towards a 3 state solution while assuring Isreal of their own security. Arab leaders have praised Biden for leading the talks and his proposals.
Or, at least, a cease-fire to get food and aid to the Palestinians who are not fighters against Israel. The problem is the military dresses like civilians, uses hospitals and schools etc, to hide in with under ground extensive tunnels etc.
No, we are not going to stop arms shipments to Israel to defend themselves or support for their Patriot missile defense system that is shooting down most incoming rockets supplied by Iran etc. That is a silly argument. They do have an argument, in my view, that Israel has perhaps gone overboard and is not avoiding civilian deaths, but when fighters are among the civilians, how they can take out only the fighters is a legitimate issue. I believe they could do better however.
The issue is neither Netanyahu nor Hamas wants to end the war. Hamas was founded with a purpose to wipe out Israel, and Netanyahu is determined to avoid another Oct 7 massacre. That is why neither will agree to a peace agreement that does not benefit each side. That is the real problem, not Biden or US policy.