I may be misunderstanding, but if you are alleging that Facebook is "promising" foreign workers that it will go through the PERM process with them, and then ren

I may be misunderstanding, but if you are alleging that Facebook is "promising" foreign workers that it will go through the PERM process with them, and then reneging on that "promise" once they are hired in order to prevent them from quitting I have seen 0 evidence of that, not is that what is being alleged. If you are saying that "not all H1-B workers go through the PERM process and get permanent residency", then yes, that's how it works, and is not at all unique to Facebook. And H1-B is not, and is not meant to be, a guaranteed path to a green card.