Why was Odysseus ship and crew destroyed?

Odysseus's ship and crew were destroyed primarily due to their disobedience to the gods, particularly Poseidon. After leaving the island of the Cyclopes, Odysseus boasted about blinding Polyphemus, Poseidon's son, which angered the god. In retaliation, Poseidon sent a storm that wrecked Odysseus's ship and drowned most of his crew, leaving him to continue his journey alone.