https://en.wikipedia.org/wiki/Kaldor–Hicks_efficiency
>(if at all - corporations might just take the difference as profit depending on the level of competition)
This doesn't make sense — if corporations 'absorb' that profit, consumers have no reason to purchase imports over domestic goods. Moreover goods with heavy competition from low-wage countries tend to have highly competitive markets, so the price is the marginal cost of production.
>This can be mitigated by income redistribution, funding for job skills retraining, and so on (although it kinda sucks to find yourself back at the bottom rung of a new field at 40 because you can't find job opportunities anymore) but, historically, these programs haven't received any funding, so it's pretty safe to assume they won't exist until proven otherwise.
Actually these programs tend to be well-funded but undersubscribed.
https://www.reuters.com/article/us-trump-effect-coal-retrain...
Removing tariffs on manufactured goods between the US and China, for instance, strongly benefits people who can set up factories to take advantage of the cheaper labor and materials. It weakly benefits consumers who get slightly (if at all - corporations might just take the difference as profit depending on the level of competition) cheaper goods, and it disadvantage all of the working class that now has to compete with cheaper Chinese labor.
This can be mitigated by income redistribution, funding for job skills retraining, and so on (although it kinda sucks to find yourself back at the bottom rung of a new field at 40 because you can't find job opportunities anymore) but, historically, these programs haven't received any funding, so it's pretty safe to assume they won't exist until proven otherwise.