> In the case of politicians opposed to international trade, the arguments put forward vary a lot, from the subtle to the grotesque, but all have in common the deflection of responsibility for domestic policy failures to external forces as the cause of those failures.
I would propose that 99.99% of "the costs that the middle and lower classes in the west, in particular, have paid for it" are a direct result of various domestic (social engineering) policies and have very little to do with international trade aside from being a convenient boogeyman to blame for the unintended consequences of these policies.
Is it any wonder there is high unemployment in somewhere like France (as an example, not to pick on the French) with a 32hr work week and being almost impossible to fire underperforming workers?