I love responses like this because they highlight how allowing broken systems to persist can so thoroughly warp their purpose. Did anyone go to law school and specialize in immigration because they felt called to be "the modern equivalent of the overseer on the plantation?" Probably not.
But if you want to sample the kind of vitriol that somebody living with the precarity of a H-1B "employer controls your life" environment, here's a paragraph of it to chew on.