Sending aid and discouraging casualties by telling the media and discussing it with Israeli officials without any incentive or enforcement is about as useful as telling the police that you swear the 10lb of weed you have fell in through the window and the proof is that it doesn't have your name on it.

FTFY

No one is assuming the worst of Biden. It's just that american foreign policy has been exactly the same for so long that it doesn't surprise anyone when the USA pretends to care about an international issue. Especially now that declassified CIA docs show just how much the USA has been aware and involved in practically every area they consider even a minor strategic advantage.