Not restrict trade, as Chad Bown explains: cancelling trade agreements does not do much to help displaced workers (though enforcing them better might), and there is little in modern trade deals that stops governments from enacting domestic policies to mitigate the harm for those on the losing side, such as better healthcare provision in the US.
Since 2008, national lawmakers have tabled dozens of motions and proposals for enacting a charity law.
Some states tried to still the demand by enacting "civil union" laws (later described by Justice Ruth Bader Ginsburg as "skim-milk marriage"), which had the same effect.
