Well, commercial shipbuilding was certainly destroyed. By the 21st century, British computer and electronic industries suffered similar fate.
Cammell Lairds in Birkenhead are going to feel so stupid when they realise how much time they've wasted building commercial ships since the war.
Pendennis will wonder how they became one of the world's leading super yacht builders too.
The UK doesn't build as many ships as we used to (mostly because we no longer have the world's largest merchant fleet and a navy specifically built to outnumber the next two largest navies combined) but we are still capable of welding pieces of steel into a pointy, floaty structure...