And what percentage of H-1Bs are these PhDs with groundbreaking research backgrounds? The vast majority of the H-1Bs are hired by a handful of consulting firms (mostly indian) to do mundate SWE/IT jobs that don't require any special skills but a few months of bootcamp.
Also, don't forget that truly exceptional researchers can self-file for green-card using national interest waiver categories: EB1NIW, EB2NIW don't require employee sponsorship.
How does the green card solve my problem as an employer? Should I also force them to get married with Americans so that they have better chances of working for me?
I just want to sponsor a visa for a worker of rare qualifications. If they choose to become permanent residents of the US it’s their choice, and frankly none of my business.
Also, don't forget that truly exceptional researchers can self-file for green-card using national interest waiver categories: EB1NIW, EB2NIW don't require employee sponsorship.
So, I think your point is moot.