Earlier quoted context omitted.
I see your point, but there is a good deal of hypocrisy in the way this kind international "trade" is viewed. Giving away second hand clothes to developing countries is indistinguishable from "dumping", a trade practice which more developed countries (including the U.S) frequently take trade action against. https://en.m.wikipedia.org/wiki/Dumping_(pricing_policy)
Dumping is a losing game for the dumper. It's nearly as bad as paying someone to buy your products. It only "works" as long as you keep paying, things revert to normal when you stop paying. Meanwhile, the dumpees are better off at your expense.
I think you're accounting only for first-order effects and ignoring costs to reboot industries that have been shut down.
EDIT: To clarify, I think your position is logically consistent and my guess is that you'd explain WTO actions / anti dumping enforcement as regulatory capture and protectionism.