We don't need a corporate Berlin wall, we need to balance a toxic asymmetry: Jobs can be exported with very little economic friction while labor faces considerable friction when it attempts to follow those jobs.
If a country wants to export labor, export commodities or import jobs from the US market, they should balance this against labor imports, job exports and commodity imports. Taxes must provide just enough friction to correct any imbalance and compensate for the jobs sucked out of the US market. Is this unfair use of US hegemony? Maybe but US hegemony currently benefits only the 1% while the 99% suffer the resulting wars and economic ruin
While we're on the topic of hegemony, why do US corporations get a free ride at destroying our reputation overseas while ordinary American citizens who misbehave have their passports revoked? Since US corporations have the same legal rights and responsibilities as US citizens, corporations should be required to hold passports.
Corporations which do not behave responsibly should have their passports revoked and should not be allowed to operate overseas. Most of us can come up with examples of corporations which have committed acts of treason. These should not only have their passports revoked, they should face the possibility of execution.