1. Trump Ego Project/Boondoggle
Critics dismiss the battleship as a wasteful publicity stunt unlikely to be built, delaying real programs like DDG(X).
"the whole proposal is nothing more than some of Trump's staffers coming up with an image and a bullet list and him liking it" (jasonwatkinspdx).
"It's kind of hilarious they announced this at the same time as the Constellation-class getting canceled, just to make sure there's no chance the Navy goes even a single day without an active boondoggle" (Analemma_).
2. US Navy Procurement Failures
Ongoing shipbuilding disasters (LCS, Zumwalt) exacerbated by this, harming capacity vs. China.
"US Navy procurement has been a disaster for over two decades now? Just Zumwalt and LCS alone are like $50 billion burned up for nothing" (jasonwatkinspdx).
"The new Trump-class battleships will replace the Navy's previous plans to develop a new class of destroyer, the DDG(X)" (kcb, quoting announcement).
3. Obsolete in Modern Warfare
Large ships vulnerable to hypersonics, missiles, drones; prefer distributed/smaller assets.
"Anywhere near the coast of China, a warship is within range of truck-mounted anti-ship missiles. Lots of them" (Animats).
"better to have 3x10k ton warship than 1x30k ton warship" (hermitcrab).