Comment by hollerith

That is preposterous.

Israel could (and probably would) prevent the fleet from delivering the aid even without help from the US.

In support of your "If China decides to send humanitarian relief to Gaza, China can do it, and Israel can't stop them," you link to a description of a ship designed for an invasion of an island 85 miles off China's coast, an invasion which China (correctly IMO) calculates would probably end in failure (or else it would've invaded by now).

Israel can't challenge China militarily in, e.g., the Pacific, but it is a wealthy competent state that takes security seriously.