One wrong U-turn and they all go in the drink.
I can't find any reports of us losing Navy ships in battle for several decades. Either its classified (not sure how you could keep a secret like that though) or what. Still, the US Navy isn't known for its heavy casualties.
US Marine General Van Riper bought down over half of the Persian Gulf fleet with a bunch of fishing vessels, light aircraft, hand-held radios and improvised explosives during a war exercise in 2002. His force was meant to match the force of a third world nation, like Iran, as preparations for a possible invasion. Blue Team losses were so bad the Navy refloated several killed ships, which is the equivalent of claiming you're not dead in a game of paintball, despite having several dozen shots splattered all over you.
A surface Navy is fundamentally useless.