To be fair, China has been widely abusing the <$800 rule for a number of years. And it really wasn't not helping either economy. Temu routinely employs forced labor and worse to give those super low prices that US companies can't compete with. https://youtu.be/quGoGgbP-aE?si=FL8pgTssEwn5qEvS&t=387

Yes, but it's the receiver that is supposed to handle the tariff not the sender.

Since when forced labor was a problem for Americans? We know for decades that Diamonds are extracted with forced labor, many imported agricultural products like coffee, clothing, etc. use forced labor/minors/slave-like conditions. The US never stoped buying these products because of such issues.

US companies also have access to locally-sourced forced labor:

https://en.wikipedia.org/wiki/Federal_Prison_Industries

There must be some other reason Temu is able to sell goods at lower prices, especially now that China is not a particularly low-wage country.