It used to be when one part of a contract was illegal the entire thing was thrown out. Not any longer, and that’s why we now have 100 pages of legalese rather than a single one.

As to your hypothetical, I wouldn’t expect the federal courts in the US to side against the industrialists. The Federalist Society controls the courts, and are now being guided by the gangsters that seized our government and are trying to permanently affix themselves in absolute power, and those judges believe those efforts will succeed.

They think the republic is already dead. Don’t expect anything good from them.