“Job-creating infrastructure” would be infrastructure that creates jobs. A chamber of commerce, small business lenders, startup accelerators etc. Building infrastructure of any kind has a temporary positive effect on employment. The builder jobs have nothing to do with the purpose of the infrastructure.
I’m sure Anthropic is saying that now, but there’s no escaping the fact that they and OpenAI repeatedly harped on how it would eliminate mass amounts of jobs for years. Or the mass layoffs blamed on AI that we have already seen.