A naval war isn't a very effective way to use men as cannon-fodder to kill them off.
Sure it is if you put them on troop carriers and those carriers are sunk with a couple of torpedoes or laser guided bombs.
I’be been on some of the JDSFs ships - they are primo and the crews are sharp in all aspects of naval warfare. They can fight a ship with the same tech as our own every bit as well if not better. They are even better now from a technology perspective then when I was onboard.
(though I do admit to wargaming them and a number of my sisterships into a slaughter that my team and I devised and executed to perfection with a few phillipine ships - stealth, radio silence, and one poor patrol boat sacrifice 40* and 100nm away was the key ... ah the early 90s good times)