Is there anyway to grade the general effectiveness of H1B co-workers and how they compare to people with permanent residency or citizenship? Or even to compare

Is there anyway to grade the general effectiveness of H1B co-workers and how they compare to people with permanent residency or citizenship? Or even to compare different people of the same citizenship status? Have you also worked with H1B co-workers who did have redeeming qualities? I've known many people in all differing forms of work authorization and citizenship, and I haven't observed any strong correlation of competency and a person's immigration/citizenship status. I've seen people here on student or H1Bs who have worked particularly hard, because they know that school or their job is the only thing keeping them is the only thing keeping them in the USA, which is where they truly want to be. I've also seen US citizens work really hard because they care about their job, or just take pride in doing good work. And I've seen people of many different backgrounds just not be the best contributors, too. If a company keeps net-negative contributors around, that's to the company's detriment. If it eventually contributes to hurting the company enough that the person gets laid off or fired, that person will struggle to keep a job at a better-functioning company. And once someone with an H1B cannot find another job, they cannot stay in the country for very long.