I don't think it's only about companies with 0 emplyees. Many companies have shrinking numbers of employees while they are producing more and more. Some companies are growing fast and don't hire new people. The jobs that are lost here are the jobs with their competitors going bankrupt.
And yes, we can try to bring production back from China, but I think that is only possible if the production is automated.
RE: Capitalism has a new problem: companies without employees