It's not only about creating jobs or keeping jobs, it's about keeping a current capability of the US industrial complex running. And if you stop it it's like a bakeries oven, when you want to turn it on again it will not be ready in to produce in time for when you need it.

That's another side to projects like the F-35 that people on HN usually don't pay attention to. This programs not only "create" those jobs but they also keep the infrastructure and "machine" running that can design and build this very powerful weapons. The US had air superiority because of its technology for a while and if all that infrastructure and people just start doing something else, in like 5/10 years then the capacity to build this machines is dead, and it would take 10/15 years to get it back up and running.