One major reason for the Bronze Age collapse was the invasion of the Sea Peoples, a swarm of warlike bandits, possibly of various tribes and people (historians can’t be sure of their ethnic make up) who descended on these Mediterranean kingdoms like Vikings. There’s numerous You Tube videos on it, just do a search. It’s one reason that archaeologists have found at least one settlement built on . one of the Mediterranean islands where the coastal cities were abandoned or ruined and locals retreated to mountain crags with only a single, difficult path leading up to it.
“...the invasion of the Sea Peoples, a swarm of warlike bandits...”
Here’s a quiz for you. Which Mediterranean Middle-eastern peoples are probably descended from the Sea Peoples? (Hint - the Israelis, Egyptians and Assyrians were already there.)
What you state about the sea peoples is true enough for Canaan and Egypt, but the hittite empire was heavily inland. The sea peoples (Sardinians etc.) would not have been able to traverse so deep. Just as later the Vikings didn’t conquer the interior of France or Germany