Any sweeping generalization is doomed to failure, but based on considerable experience and research, I can confidently say that H1-Bs are important because they provide cheap labor.
The official excuse of “expertise” coming from foreigners is strictly BS. They tend not be experts. They tend to have major communication problems. They tend to not fit well with American culture.
They are not that different from migrant farm laborers.
The American people though always seem excited to get more foreign workers here. They must be clueless.
Not that different from migrant farm laborers???
I’d bet that you’ve never had to debug their code, have you? :=)