Then they need to establish "cause" in each individual case, the way it's always done. "We want to import hundreds of cheap foreigners with the connivance of the US government to do your job" isn't "cause".
They need to prove cause to Donald Trump and the federal government before they let someone go?
Really?!
If they prove cause, might they have permission to manage their own workforce?
How much government meddling is enough?
So much for a right to work...