Battleships are a weapons platform that could always be updated and should never have been mothballed. Even if they are just “for show” that is worth it for gunboat diplomacy reasons. It’s a big stick and gets attention.
Battleships are still strategically necessary because of their logistical flexibility. Out fitted with the right weaponry they are a major force.
Totally agree. plus they are cost effective. Missiles are a million bucks apiece minimum. With a battleship and big cannon can lob huge shells 30-40 miles sitting offshore of some third world hell hole at much lower cost.