I have previously read that there was minimum crew on the ship when the fire was discovered but I was alarmed that US Navy ships would not be wired with sensors to effectively detect fires and automatic systems to successfully fight multiple fires at once. Perhaps these systems were disabled for maintenance?
Anti-ship missiles in vast amounts by potential adversaries have certainly have been in the news and the fires a hit would start would be extreme compared to an arson fire in below decks equipment. Navy crew members must be highly trained fire fighters, and be on ships with designed in fire fighting features superior to any potential adversary. Has the modern USA Navy forgotten this lesson from the battle of Midway ?
On the other hand, modern torpedoes no longer hit the side of the hull. They explode below the keel creating a gas bubble that cracks the keel of the ship in half.
The British torpedo that hit the former US Battleship that Argentina renamed the Belgrano shows the massive destruction of a modern torpedo.
The only hope for a modern ship is to sink the ship/submarine/drone before it is in torpedo range, or launch mini defensive torpedoes that destroy the incoming torpedo.
US Navy attempts to create such mini defensive torpedoes to protect aircraft carriers have so far been a massive waste of money.
The Belgrano was a light cruiser not a battleship.
the rest of your statement is just about as far off too. I served in the Navy, did 4 years on a destroyer and time on other ships as well. I was there when the Samuel B. Roberts hit a mine and nearly cracked in half. Nothing automated would have saved the ship, the crew did that. The worst part of that wasn't the fire, it was the water used to fight the fire, they damn near sank themselves trying to put out the fires. We ended up sending damn near every portable dewatering pump in the Persian Gulf to them, then they realized they didn't have enough gasoline to run them for long, so we sent damn near all the gasoline we had in the Gulf to them. We learned two things from that, ships need more dewatering pump and more gasoline to run them.
The main engineering spaces do have automated firefighting systems. The rest of the ship has the crew. People cry about the cost of military equipment as it is, then complaint about how it's not state of the art, without all the bells and whistles. You can't have both. A warship is a compromise, every single aspect of it is carefully balanced against needs and wants. Doesn't make sense to have a warship capable of fighting any conceivable fire automatically if all that gear leaves no room for ammo, or fuel, or provisions.