In 1977 I was on a merchant ship in Mumbai (Bombay) India.
I saw pallets of donated clothing swung over the side into the garbage scows. The chief mate thought that it was about 2 or 3 tons of American donated clothing that was destroyed.
I’ve volunteered at two small charity thrift stores over the years, and the dirty little secret is that less than half of what is donated is good enough to resell. The rest goes into the dumpster or is picked up to be sent overseas, where much of it is still dumped. What I tell people is, “If you wouldn’t buy it, please don’t donate it. Nobody else will buy it either.”