Your argument is based on this false premise: Because tariffs, anti-trust laws, and labor laws were used in American policy, they were American policy. This ignores the complexity of American policies.
One could just as easily assert that since America was not totally protectionist as a matter of US policy, then free trade was US policy.
The argument should be about which policy is best. Care to refute the principle that a larger market is more efficient in its allocation of resources, and is not therefore, a zero-sum game?
Well, I do know to avoid estate taxes some wealthy folks in America go off to places like Australia with their wealth so 400 million can pass for almost nothing.
As far as taking all these businesses out of the country, the downside is they give other Americans a market to fill and eventually laws would probably put large import charges on items to make being out of the country unthinkable.
One of the main unspoken purposes of the tax code for the government is to dictate businesses behavior by making companies have to operate around the written code.
Good point, but see my 138, while the nation did experiment with lowering protectionist tariffs from time to time (under democrats) the experiment was always abandoned until quite recently.