https://www.siliconvalley.com/2019/04/11/h-1b-group-speaking-for-google-facebook-apple-outsourcers-fights-legal-move-to-strip-jobs-from-h-1b-spouses/

A group representing major Silicon Valley technology companies and global outsourcing firms has filed a court brief arguing that employment authorization for spouses of H-1B workers — which the Trump administration has promised to revoke — leads to economic growth and creates about as many jobs as it takes away.

But a lawyer on the other side argues that the claimed benefits are irrelevant to the case at hand, and that the work permission lets employers keep foreign employees under their thumbs.