A supposed shortage of qualified US applicants for tech jobs, especially software developers, doesn't jibe with the huge numbers of US developers currently looking for work, including highly experienced older workers suffering from age discrimination. I'd be surprised if more than 5-10% of H-1B positions are ones where the hiring company has even looked for US applicants.
In a post-remote world these jobs aren’t competing with on-shore labor. This is a populist pitch in the mould of iron work to Pennsylvania.