Would make it beneficial for companies to hire from within the US and dissuade huge mega corporations from firing all their on-shore staff to replace them with offshore workers making like $2 an hour.
Keep jobs here in America.
Offshoring also should violate privacy laws if any secure documents or personally identifiable information (ex.) health records, social security numbers, etc are accessible by offshore individuals. Increase our cyber security. For example, healthcare institutions or defense institutions shouldn’t be allowed to hire offshore contractors from India for IT support of their systems, because if the systems were breached in India, a threat actor would be able to steal whatever data they want that the user(s) have access to.