The US doesn't have too much trouble manufacturing things like aircraft carriers and submarines and 5th-gen fighter jets and missiles, and indeed builds plenty

The US doesn't have too much trouble manufacturing things like aircraft carriers and submarines and 5th-gen fighter jets and missiles, and indeed builds plenty of those, even exporting some. It does have trouble building an icebreaker, but it doesn't need those very often, so it can't keep any company interested in the business when it only wants one every ~30 years or whatever. It doesn't make sense to spend a ton of money just to build one ship, when they can just buy it from Finland.